Physics Questions on Force and Motion

A cart of mass 10 kg is pushed with a force of 30 N. What is the cart's acceleration?

• 3 m/s²

• 10 m/s²

• 30 m/s²

• 0.3 m/s²

A horizontal force of 50 N acts upon a box of mass 20 kg. What is the acceleration of the box?

• 2.5 m/s²

• 5 m/s²

• 10 m/s²

• 1 m/s²

A 15 kg object accelerates at 4 m/s². What is the applied force acting on the object?

• 60 N

• 15 N

• 4 N

• 30 N

An object has a mass of 12 kg. What is the object's weight on Earth (g = 10 m/s²)?

• 120 N

• 12 N

• 10 N

• 1.2 N

A sled is pushed across a frictionless surface with a force of 25 N. The sled has a mass of 5 kg. What is the acceleration of the sled?

• 5 m/s²

• 25 m/s²

• 10 m/s²

• 1 m/s²

A ball of mass 2 kg is rolling at 6 m/s. A force of 3 N is applied to stop it. How long will it take to stop the ball?

• 4 seconds

• 2 seconds

• 6 seconds

• 1 second

A cart of mass 6 kg is pushed with a constant force of 18 N. How long will it take to reach a speed of 9 m/s from rest?

• 3 seconds

• 2 seconds

• 4 seconds

• 1 second

A block of mass 8 kg is pushed with a force of 32 N across a smooth, horizontal surface. What is the acceleration of the block?

• 4 m/s²

• 8 m/s²

• 2 m/s²

• 6 m/s²

An object has a mass of 20 kg. On Planet X, the gravitational acceleration is 6 m/s². What is the weight of the object on Planet X?

• 120 N

• 100 N

• 200 N

• 80 N

A 12 kg box is sitting on a horizontal table. A person places a 3 kg book on top of the box. What is the total normal force exerted by the table?

• 120 N

• 150 N

• 180 N

• 200 N