A CD has a diameter of 12.0 cm.If the CD starts from rest and has a constant angular acceleration of 0.600 rad/sec2,then the total acceleration of a point 3.00 cm from the center of the CD after 1.30 sec is

A) 0.0256 m/s2. B) 0.0306 m/s2. C) 0.0415 m/s2. D) 0.0472 m/s2. E) 0.0502 m/s2. A) 0.0256 m/s2. B) 0.0306 m/s2. C) 0.0415 m/s2. D) 0.0472 m/s2. E) 0.0502 m/s2.

Exam 5: Circular Motion

A roller coaster has a vertical loop with radius 29.5 m.What is the minimum speed of the roller coaster car can have at the top of the loop if the passengers do not lose contact with the seats?

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Question 21

A 2000 kg car is traveling on a banked curved icy road.The velocity of the car is 25.0 m/s and the road has a radius of curvature of 500 m.If the car is to travel on the icy road without sliding,then the angle of the banked road is

(Multiple Choice)

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Question 22

A CD has a diameter of 12.0 cm.If the CD starts from rest and has a constant angular acceleration of 0.600 rad/sec²,then the total acceleration of a point 3.00 cm from the center of the CD after 1.30 sec is

(Multiple Choice)

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Question 23

A CD has a diameter of 12.0 cm.If the CD is rotating at a constant angular velocity of 25 radians per seconds,then the tangential velocity of a point on the circumference is

(Multiple Choice)

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Question 24

A CD has a diameter of 12.0 cm.If the CD is rotating at a constant frequency of 4.00 cycles per second,then the period of the rotational motion is

(Multiple Choice)

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Question 25

A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.0 rad/sec² acquires an angular velocity of 5.0 rad/sec.The CD continues rotating at 5.0 rad/sec for 15.0 seconds and then slows to a stop in 12.0 second with a constant angular deceleration.What is the tangential velocity of a point 4.0 cm from the center at the time 10.0 seconds from the start?

(Multiple Choice)

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Question 26

A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.0 rad/sec² acquires an angular velocity of 5.0 rad/sec.The CD continues rotating at 5.0 rad/sec for 15.0 seconds and then slows to a stop in 12.0 second with a constant angular deceleration.What is the centripetal acceleration of a point 4.0 cm from the center at the time 15.0 seconds from the start?

(Multiple Choice)

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Question 27

A CD has a diameter of 12.0 cm.If the CD is rotating at a constant frequency of 4.00 cycles per second,then the tangential velocity of a point on the circumference is

(Multiple Choice)

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Question 28

A 4.00 kg mass is moving in a circular path of radius 2.50 m with a constant angular velocity of 5.00 rad/sec.The centripetal force on the mass is

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Question 29

A 4.0 kg mass is moving in a circular path of radius 2.5 m with a constant tangential velocity of 5.0 m/sec.The centripetal force on the mass is

(Multiple Choice)

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Question 30

A 0.500 kg stone is moving in a vertical circular path attached to a string that is 75.0 cm long.The stone is moving around the path at a constant frequency of 2.20 rev/sec.At the moment the stone is overhead,the stone is released.The magnitude and direction of the velocity of the stone when it leaves the circular path is

(Multiple Choice)

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Question 31

A circular space station (shaped like a big wheel)rotates 100 times in one hour.The apparent weight of an astronaut standing on the inside surface of the outer wall is equal to her weight on earth.How far from the axis of rotation is the inside surface of the station's outer wall?

(Multiple Choice)

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Question 32

An object is moving in a circular path of radius 4.00 m.If the object moves through a tangential distance of 3.00 meters,then the angle the object travels through is

(Multiple Choice)

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Question 33

A 5,000 kg satellite is orbiting the Earth in a circular path.The height of the satellite above the surface of the Earth is 800 km.The velocity of the satellite is (Me = 5.98 $\times$ 10²⁴ kg, Re = 6.37 $\times$ 10⁶ m, G = 6.67 $\times$ 10^-11 N.m²/kg²)

(Multiple Choice)

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Question 34

A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.00 rad/sec² acquires an angular velocity of 5.00 rad/sec.The CD continues rotating at 5.00 rad/sec for 15.0 seconds and then slows to a stop in 12.0 second with a constant angular deceleration.What is the angular distance traveled by a point 4.00 cm from the center,at the time 10.0 seconds from the start?

(Multiple Choice)

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Question 35

An airplane flies in a semi-circular arc in order to simulate "weightlessness" for its occupants.If the speed at which the plane flies is 750 km/hr,what is the radius of the semicircular path it flies in?

(Multiple Choice)

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Question 36

A car travels on a road that,if viewed from the side,has a semicircular dip.When at the bottom of the dip,the occupants of the car feel as though they weigh twice their normal weight.What is the radius of the semicircle if the speed of the car is 27 m/s?

(Multiple Choice)

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Question 37

A 2.0 kg mass is moving in a circular path with a radius of 5.00 cm.The mass starts from rest and with constant angular acceleration,obtains an angular velocity of 6.00 rad/sec in 3.00 sec.The mass then comes to a stop with constant angular deceleration in 4.00 sec.The centripetal component of acceleration of the mass at 5.00 sec after the start is

(Multiple Choice)

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Question 38

A 4.00 kg mass is moving in a circular path with a constant angular velocity of 5.00 rad/sec and with a tangential velocity of 5.00 m/sec.The centripetal force on the mass is

(Multiple Choice)

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Question 39

The radius of the Earth is r.A satellite of mass 100 kg is at a point 3r above the Earth's surface.What is the satellites' weight?

(Multiple Choice)

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Question 40

Showing 21 - 40 of 87

Exam 5: Circular Motion

A roller coaster has a vertical loop with radius 29.5 m.What is the minimum speed of the roller coaster car can have at the top of the loop if the passengers do not lose contact with the seats?

A 2000 kg car is traveling on a banked curved icy road.The velocity of the car is 25.0 m/s and the road has a radius of curvature of 500 m.If the car is to travel on the icy road without sliding,then the angle of the banked road is

A CD has a diameter of 12.0 cm.If the CD starts from rest and has a constant angular acceleration of 0.600 rad/sec2,then the total acceleration of a point 3.00 cm from the center of the CD after 1.30 sec is

A CD has a diameter of 12.0 cm.If the CD is rotating at a constant angular velocity of 25 radians per seconds,then the tangential velocity of a point on the circumference is

A CD has a diameter of 12.0 cm.If the CD is rotating at a constant frequency of 4.00 cycles per second,then the period of the rotational motion is

A CD has a diameter of 12.0 cm.If the CD is rotating at a constant frequency of 4.00 cycles per second,then the tangential velocity of a point on the circumference is

A 4.00 kg mass is moving in a circular path of radius 2.50 m with a constant angular velocity of 5.00 rad/sec.The centripetal force on the mass is

A 4.0 kg mass is moving in a circular path of radius 2.5 m with a constant tangential velocity of 5.0 m/sec.The centripetal force on the mass is

A circular space station (shaped like a big wheel)rotates 100 times in one hour.The apparent weight of an astronaut standing on the inside surface of the outer wall is equal to her weight on earth.How far from the axis of rotation is the inside surface of the station's outer wall?

An object is moving in a circular path of radius 4.00 m.If the object moves through a tangential distance of 3.00 meters,then the angle the object travels through is

A 5,000 kg satellite is orbiting the Earth in a circular path.The height of the satellite above the surface of the Earth is 800 km.The velocity of the satellite is (Me = 5.98 ×\times× 1024 kg, Re = 6.37 ×\times× 106 m, G = 6.67 ×\times× 10-11 N.m2/kg2)

An airplane flies in a semi-circular arc in order to simulate "weightlessness" for its occupants.If the speed at which the plane flies is 750 km/hr,what is the radius of the semicircular path it flies in?

A car travels on a road that,if viewed from the side,has a semicircular dip.When at the bottom of the dip,the occupants of the car feel as though they weigh twice their normal weight.What is the radius of the semicircle if the speed of the car is 27 m/s?

A 4.00 kg mass is moving in a circular path with a constant angular velocity of 5.00 rad/sec and with a tangential velocity of 5.00 m/sec.The centripetal force on the mass is

The radius of the Earth is r.A satellite of mass 100 kg is at a point 3r above the Earth's surface.What is the satellites' weight?

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A CD has a diameter of 12.0 cm.If the CD starts from rest and has a constant angular acceleration of 0.600 rad/sec²,then the total acceleration of a point 3.00 cm from the center of the CD after 1.30 sec is

A 5,000 kg satellite is orbiting the Earth in a circular path.The height of the satellite above the surface of the Earth is 800 km.The velocity of the satellite is (Me = 5.98 $\times$ 10²⁴ kg, Re = 6.37 $\times$ 10⁶ m, G = 6.67 $\times$ 10^-11 N.m²/kg²)