Exam 4: Motion With Constant Acceleration

Two masses are being pulled up a 30.0 degrees incline by a force F parallel to the incline.The acceleration up the incline is 1.00 m/s² and the velocity is up the incline.The force is applied to a 200 kg mass and a string connects the 200 kg mass to a 150 kg mass.The coefficient of kinetic friction is 0.200.The tension in the string is

Two masses are being pulled up a 30.0 degrees incline by a force F parallel to the incline.The acceleration up the incline is 1.00 m/s² and the velocity is down the incline.The force is applied to a 200 kg mass and a string connects the 200 kg mass to a 150 kg mass.The coefficient of kinetic friction is 0.200.The force F is

Two balls are thrown from the top of a building.One is thrown up and the other is thrown down,both with the same initial speed.What are their speeds when they hit the street?

Two masses are connected by a string which passes over a pulley with negligible mass and friction.One mass hangs vertically and one mass slides on a frictionless 30.0 degrees incline.The vertically hanging mass is 6.00 kg and the mass on the incline is 4.00 kg.The acceleration of the 4.00 kg mass is

Two masses are connected by a string which passes over a pulley with negligible mass and friction.One mass hangs vertically and one mass slides on a 30.0 degrees incline.The inclined surface has a coefficient of kinetic friction of 0.200.The vertically hanging mass is 6.00 kg and the mass on the incline is 4.00 kg.The acceleration of the 4.00 kg mass is (the initial velocity is zero)

A sprinter runs 100.0 m in 9.87 seconds.If he travels at constant acceleration for the first 75.0 m and then at constant velocity for the final 25.0 m,what was his peak velocity?

Two masses are connected by a string which passes over a pulley with negligible mass and friction.One mass hangs vertically and one mass slides on a 30.0 degrees frictionless incline.The vertically hanging mass is 3.00 kg and the mass on the incline is 6.00 kg.The acceleration of the 3.00 kg mass is (the initial velocity is zero)

A projectile is projected from the origin with a velocity of 45.0 m/s at an angle of 30.0 degrees above the horizontal.What is the location of the projectile 3.00 seconds later?

An object of mass m is hanging by a string from the roof of an elevator.The elevator is moving up at a constant speed.What is the tension in the string?

An object of mass m is hanging by a string from the roof of an elevator.The elevator is slowing down.What is the tension in the string?

A projectile is projected from the origin with a velocity of 20.0 m/s at an angle of 30.0 degrees above the horizontal.The projectile lands on a roof that is 4.00 m height.What is the time when the projectile hits the roof?

A projectile is projected from the origin with a velocity of 25.0 m/s at an angle of 45.0 degrees above the horizontal.What is the time it takes for the projectile to hit the ground?

Two masses are connected by a string which passes over a pulley with negligible mass and friction.One mass hangs vertically and one mass slides on a 30.0 degrees frictionless incline.The vertically hanging mass is 4.0 kg and the mass on the incline is 6.00 kg.The acceleration of the 4.00 kg mass is

Two masses are being pulled up a frictionless 30.0 degrees incline by a force F parallel to the incline.The acceleration up the incline is 1.00 m/s².The force is applied to a 200 kg mass and a string connects the 200 kg mass to a 150 kg mass.The force F is

A rocket is launched from the origin with an acceleration of 20.0 m/s² at an angle of 30.0 degrees above the horizontal.The launch acceleration lasts for 2.00 seconds at which time the fuel is exhausted.The rocket then falls with an acceleration of 9.80 m/s² downward.What is the maximum velocity in the upward direction?

A skydiver has bailed out of his airplane at a height of 3000 m.The mass of the skydiver and his parachute is 80 kg.What is the drag (force of air resistance)when he reaches terminal speed?

A projectile is projected from the origin with a velocity of 45.0 m/s at an angle of 30.0 degrees above the horizontal.What is the velocity when the projectile hits the ground?

A projectile is projected from the origin with a velocity of 30.0 m/s at an angle of 40.0 degrees above the horizontal.What is the time it takes the projectile to reach maximum height?

A projectile is projected from the origin with a velocity of 25.0 m/s at an angle of 50.0 degrees above the horizontal.What is the time of maximum height of the projectile?

An object of mass m is hanging by a string from the roof of an elevator.The elevator is increasing its upward speed.What is the tension in the string?