Question 1

You drive your car 5.0 km due East at 35 km/hr,and suddenly realize that you forgot your wallet.So,you return home,driving West at 40 km/hr,and upon arrival spend 10 minutes looking for it,and finally go back on the road for a total of 57.0 km due East.If your average velocity was 40 km/hr for the whole journey,what was your average speed on your last leg.

Accepted Answer

A)   49 km/hr
B)   40 km/hr
C)   45 km/hr
D)   56 km/hr D

Question 2

A car traveling at 4.0 m/s has a constant acceleration of 2.0 m/s2.After 3.0 seconds,the distance traveled during the acceleration is

Accepted Answer

A)   21 m.
B)   17 m.
C)   10 m.
D)   13 m.
E)   9 m. A

Question 3

An object starts from rest with an acceleration of 2.0 m/s2 for 3.0 seconds.It then reduces its acceleration to 1.0 m/s2 for 5.0 additional seconds.The total distance covered is

Accepted Answer

A)   52 m.
B)   38 m.
C)   11 m.
D)   9.0 m.
E)   7.6 m. A

Question 4

The figure is a graph of an object moving in a straight line.Solve graphically to determine which section of the path has the highest speed.

Accepted Answer

A)   DE
B)   EF
C)   CD
D)   AB

Question 5

An object travels 7.5 m/s toward the West and under the influence of a constant net force of 5.2 kN,it comes to rest in 3.2 s.What is its mass?

Accepted Answer

A)   1600 kg
B)   12000 kg
C)   1100 kg
D)   690 kg

Question 6

A displacement vector D is given as 40.0 m long at an angle of 60.0 degrees EAST of NORTH.The Dx component and the Dy component of the vector are

Accepted Answer

A)   Dx = +34.6 m,Dy = +20.0 m.
B)   Dx = +20.0 m,Dy = -34.6 m.
C)   Dx = +20.0 m,Dy = +34.6 m.
D)   Dx = -34.6 m,Dy = +20.0 m.
E)   Dx = +34.6 m,Dy = -20.0 m.

Question 7

A 4.0 kg mass has a velocity of 12 m/s to the WEST.The 4.0 kg mass undergoes an acceleration of 2.0 m/s2 to the WEST for 3.0 sec.What is the velocity of the 4.0 kg mass at the end of the 3.0 sec interval?

Accepted Answer

A)   18 m/s to the WEST
B)   6.0 m/s to the WEST
C)   0.0 m/s
D)   6.0 m/s to the EAST
E)   18 m/s to the EAST

Question 8

A river flows toward the East at 1.7 m/s.Steve can swim 2.0 m/s in still water.If he swims,relative to the water at a direction of 33 degrees west of north,how long will it take him to cross the 75 m wide river?

Accepted Answer

A)   45 s
B)   39 s
C)   123 s
D)   27 s

Question 9

A car traveling at 4.0 m/s has a constant acceleration of 2.0 m/s2.After 3.0 seconds,the average velocity during the acceleration is

Accepted Answer

A)   5.0 m/s.
B)   7.0 m/s.
C)   9.0 m/s.
D)   11 m/s.
E)   13.

Question 10

Two masses are suspended by cord that passes over a pulley with negligible mass.The cord also has negligible mass.One of the masses,m1,has a mass of 5.0 kg and the other mass,m2,has a mass of 3.0 kg.The acceleration of m1 is

Accepted Answer

A)   3.3 m/s2 upward.
B)   3.3 m/s2 downward.
C)   2.5 m/s2 upward.
D)   2.5 m/s2 downward.
E)   1.1 m/s2 upward.

Question 11

In the figure,an airport luggage-carrying train with a tractor T is pulling three luggage carts,M1,M2,and M3 with an acceleration of 1.0 m/s2.If T = 300 kg,M1 = 200 kg,M2 = 100 kg,and M3 = 100 kg,then the force in the connection between cart M2,and cart M3 is

Accepted Answer

A)   700 N.
B)   400 N.
C)   200 N.
D)   100 N.
E)   0 N.

Question 12

A car starts from rest and travels a distance of 100 m in 15 seconds with a constant acceleration.The average velocity of the car for the 15 seconds interval is

Accepted Answer

A)   24.0 m/s.
B)   21.0 m/s.
C)   16.7 m/s.
D)   13.3 m/s.
E)   6.67 m/s.

Question 13

An ant crawls in a straight line at a constant speed of 0.35 m/s,beginning in the corner of a square classroom that is 5.00 m on a side.It first crosses the diagonal of the room,and then turns to the right,continuing at 0.45 m/s to the far corner of the same wall from which it began.What was the ant's average speed for the whole trip?

Accepted Answer

A)   0.40 m/s
B)   0.16 m/s
C)   0.24 m/s
D)   0.39 m/s

Question 14

A tractor T is pulling two trailers,M1 and M2,with a constant acceleration.T has a mass of 200 kg,M1 has a mass of 100 kg,and M2 has a mass of 150 kg.If the forward acceleration is 0.60 m/s2,then the horizontal force on M2 due to the attachment to M1 is

Accepted Answer

A)   270 N backward.
B)   270 N forward.
C)   150 N backward.
D)   150 N forward.
E)   90 N forward.

Question 15

A car starts from rest and travels a distance of 100 m in 20 seconds with a constant acceleration.The velocity of the car is at the end of the 20 second interval is

Accepted Answer

A)   25 m/s.
B)   20 m/s.
C)   15 m/s.
D)   10 m/s.
E)   5.0 m/s.

Question 16

The graph shows vx versus t for an object moving along straight line.What is the average velocity from t = 0 to t = 11 s?

Accepted Answer

A)   25 m/s2
B)   36 m/s2
C)   30 m/s2
D)   21 m/s2

Question 17

The figure is a graph of vx(t)for a car.Solve graphically for the distance traveled from t = 10 s to t = 15 s.

Accepted Answer

A)   75 m
B)   70 m
C)   67 m
D)   69 m

Question 18

Two masses are suspended by cord that passes over a pulley with negligible mass.The cord also has negligible mass.One of the masses,m1,has a mass of 6.0 kg and the other mass,m2,has a mass of 4.0 kg.The force of the cord attached to m1 is

Accepted Answer

A)   47 N upward.
B)   47 N downward.
C)   33 N upward.
D)   33 N downward.
E)   15 N upward.

Question 19

A car starting from rest travels a distance of 20.0 m with a constant acceleration of 2.0 m/s2.The car then slows to a stop in 10.0 seconds with a constant negative acceleration.The distance traveled by the car is

Accepted Answer

A)   36 m.
B)   46 m.
C)   50 m.
D)   58 m.
E)   65 m.

Question 20

The velocity of a boat with respect to the water is 4.0 m/s at an angle of 30.0 degrees NORTH of EAST.The velocity of the water with respect to the ground is 3.0 m/s at an angle of 90.0 degrees NORTH of EAST.What is the velocity of the boat with respect to the ground?

Accepted Answer

A)   6.1 m/s at 36 degrees NORTH of EAST
B)   5.8 m/s at 55 degrees NORTH of EAST
C)   6.1 m/s at 61 degrees NORTH of EAST
D)   5.8 m/s at 36 degrees NORTH of EAST
E)   6.1 m/s at 55 degrees NORTH of EAST

Exam 3: Acceleration and Newtons Second Law of Motion

A car traveling at 4.0 m/s has a constant acceleration of 2.0 m/s².After 3.0 seconds,the distance traveled during the acceleration is

An object starts from rest with an acceleration of 2.0 m/s² for 3.0 seconds.It then reduces its acceleration to 1.0 m/s² for 5.0 additional seconds.The total distance covered is

The figure is a graph of an object moving in a straight line.Solve graphically to determine which section of the path has the highest speed.

An object travels 7.5 m/s toward the West and under the influence of a constant net force of 5.2 kN,it comes to rest in 3.2 s.What is its mass?

A displacement vector D is given as 40.0 m long at an angle of 60.0 degrees EAST of NORTH.The D_x component and the D_y component of the vector are

A 4.0 kg mass has a velocity of 12 m/s to the WEST.The 4.0 kg mass undergoes an acceleration of 2.0 m/s² to the WEST for 3.0 sec.What is the velocity of the 4.0 kg mass at the end of the 3.0 sec interval?

A river flows toward the East at 1.7 m/s.Steve can swim 2.0 m/s in still water.If he swims,relative to the water at a direction of 33 degrees west of north,how long will it take him to cross the 75 m wide river?

A car traveling at 4.0 m/s has a constant acceleration of 2.0 m/s².After 3.0 seconds,the average velocity during the acceleration is

Two masses are suspended by cord that passes over a pulley with negligible mass.The cord also has negligible mass.One of the masses,m₁,has a mass of 5.0 kg and the other mass,m₂,has a mass of 3.0 kg.The acceleration of m₁ is

In the figure,an airport luggage-carrying train with a tractor T is pulling three luggage carts,M₁,M₂,and M₃ with an acceleration of 1.0 m/s².If T = 300 kg,M₁ = 200 kg,M₂ = 100 kg,and M₃ = 100 kg,then the force in the connection between cart M₂,and cart M₃ is

A car starts from rest and travels a distance of 100 m in 15 seconds with a constant acceleration.The average velocity of the car for the 15 seconds interval is

A tractor T is pulling two trailers,M₁ and M₂,with a constant acceleration.T has a mass of 200 kg,M₁ has a mass of 100 kg,and M₂ has a mass of 150 kg.If the forward acceleration is 0.60 m/s²,then the horizontal force on M₂ due to the attachment to M₁ is

A car starts from rest and travels a distance of 100 m in 20 seconds with a constant acceleration.The velocity of the car is at the end of the 20 second interval is

The graph shows v_x versus t for an object moving along straight line.What is the average velocity from t = 0 to t = 11 s?

The figure is a graph of v_x(t) for a car.Solve graphically for the distance traveled from t = 10 s to t = 15 s.

Two masses are suspended by cord that passes over a pulley with negligible mass.The cord also has negligible mass.One of the masses,m₁,has a mass of 6.0 kg and the other mass,m₂,has a mass of 4.0 kg.The force of the cord attached to m₁ is

A car starting from rest travels a distance of 20.0 m with a constant acceleration of 2.0 m/s².The car then slows to a stop in 10.0 seconds with a constant negative acceleration.The distance traveled by the car is

The velocity of a boat with respect to the water is 4.0 m/s at an angle of 30.0 degrees NORTH of EAST.The velocity of the water with respect to the ground is 3.0 m/s at an angle of 90.0 degrees NORTH of EAST.What is the velocity of the boat with respect to the ground?

Exam 3: Acceleration and Newtons Second Law of Motion

A car traveling at 4.0 m/s has a constant acceleration of 2.0 m/s2.After 3.0 seconds,the distance traveled during the acceleration is

An object starts from rest with an acceleration of 2.0 m/s2 for 3.0 seconds.It then reduces its acceleration to 1.0 m/s2 for 5.0 additional seconds.The total distance covered is

The figure is a graph of an object moving in a straight line.Solve graphically to determine which section of the path has the highest speed.

An object travels 7.5 m/s toward the West and under the influence of a constant net force of 5.2 kN,it comes to rest in 3.2 s.What is its mass?

A displacement vector D is given as 40.0 m long at an angle of 60.0 degrees EAST of NORTH.The Dx component and the Dy component of the vector are

A 4.0 kg mass has a velocity of 12 m/s to the WEST.The 4.0 kg mass undergoes an acceleration of 2.0 m/s2 to the WEST for 3.0 sec.What is the velocity of the 4.0 kg mass at the end of the 3.0 sec interval?

A river flows toward the East at 1.7 m/s.Steve can swim 2.0 m/s in still water.If he swims,relative to the water at a direction of 33 degrees west of north,how long will it take him to cross the 75 m wide river?

A car traveling at 4.0 m/s has a constant acceleration of 2.0 m/s2.After 3.0 seconds,the average velocity during the acceleration is

Two masses are suspended by cord that passes over a pulley with negligible mass.The cord also has negligible mass.One of the masses,m1,has a mass of 5.0 kg and the other mass,m2,has a mass of 3.0 kg.The acceleration of m1 is

In the figure,an airport luggage-carrying train with a tractor T is pulling three luggage carts,M1,M2,and M3 with an acceleration of 1.0 m/s2.If T = 300 kg,M1 = 200 kg,M2 = 100 kg,and M3 = 100 kg,then the force in the connection between cart M2,and cart M3 is

A car starts from rest and travels a distance of 100 m in 15 seconds with a constant acceleration.The average velocity of the car for the 15 seconds interval is

A tractor T is pulling two trailers,M1 and M2,with a constant acceleration.T has a mass of 200 kg,M1 has a mass of 100 kg,and M2 has a mass of 150 kg.If the forward acceleration is 0.60 m/s2,then the horizontal force on M2 due to the attachment to M1 is

A car starts from rest and travels a distance of 100 m in 20 seconds with a constant acceleration.The velocity of the car is at the end of the 20 second interval is

The graph shows vx versus t for an object moving along straight line.What is the average velocity from t = 0 to t = 11 s?

The figure is a graph of vx(t) for a car.Solve graphically for the distance traveled from t = 10 s to t = 15 s.

Two masses are suspended by cord that passes over a pulley with negligible mass.The cord also has negligible mass.One of the masses,m1,has a mass of 6.0 kg and the other mass,m2,has a mass of 4.0 kg.The force of the cord attached to m1 is

A car starting from rest travels a distance of 20.0 m with a constant acceleration of 2.0 m/s2.The car then slows to a stop in 10.0 seconds with a constant negative acceleration.The distance traveled by the car is

The velocity of a boat with respect to the water is 4.0 m/s at an angle of 30.0 degrees NORTH of EAST.The velocity of the water with respect to the ground is 3.0 m/s at an angle of 90.0 degrees NORTH of EAST.What is the velocity of the boat with respect to the ground?

A car traveling at 4.0 m/s has a constant acceleration of 2.0 m/s².After 3.0 seconds,the distance traveled during the acceleration is

An object starts from rest with an acceleration of 2.0 m/s² for 3.0 seconds.It then reduces its acceleration to 1.0 m/s² for 5.0 additional seconds.The total distance covered is

A displacement vector D is given as 40.0 m long at an angle of 60.0 degrees EAST of NORTH.The D_x component and the D_y component of the vector are

A 4.0 kg mass has a velocity of 12 m/s to the WEST.The 4.0 kg mass undergoes an acceleration of 2.0 m/s² to the WEST for 3.0 sec.What is the velocity of the 4.0 kg mass at the end of the 3.0 sec interval?

A car traveling at 4.0 m/s has a constant acceleration of 2.0 m/s².After 3.0 seconds,the average velocity during the acceleration is

Two masses are suspended by cord that passes over a pulley with negligible mass.The cord also has negligible mass.One of the masses,m₁,has a mass of 5.0 kg and the other mass,m₂,has a mass of 3.0 kg.The acceleration of m₁ is

In the figure,an airport luggage-carrying train with a tractor T is pulling three luggage carts,M₁,M₂,and M₃ with an acceleration of 1.0 m/s².If T = 300 kg,M₁ = 200 kg,M₂ = 100 kg,and M₃ = 100 kg,then the force in the connection between cart M₂,and cart M₃ is

A tractor T is pulling two trailers,M₁ and M₂,with a constant acceleration.T has a mass of 200 kg,M₁ has a mass of 100 kg,and M₂ has a mass of 150 kg.If the forward acceleration is 0.60 m/s²,then the horizontal force on M₂ due to the attachment to M₁ is

The graph shows v_x versus t for an object moving along straight line.What is the average velocity from t = 0 to t = 11 s?

The figure is a graph of v_x(t) for a car.Solve graphically for the distance traveled from t = 10 s to t = 15 s.

Two masses are suspended by cord that passes over a pulley with negligible mass.The cord also has negligible mass.One of the masses,m₁,has a mass of 6.0 kg and the other mass,m₂,has a mass of 4.0 kg.The force of the cord attached to m₁ is

A car starting from rest travels a distance of 20.0 m with a constant acceleration of 2.0 m/s².The car then slows to a stop in 10.0 seconds with a constant negative acceleration.The distance traveled by the car is