What causes a train carrying heavy cargo to take more time to come to a stop than an identical train carrying lighter cargo if both trains are traveling at the same speed?

Jeremy exerted a force of 400 newtons on a pair of pliers that held a walnut. The pliers generated a force of 1200 newtons onto the walnut and cracked it open.

What was the mechanical advantage of the pliers?

The diagram shows an elastic collision between two spheres.

What is the velocity of sphere 2 after the collision?

The table below shows initial conditions before several inelastic collisions occur.

Which inelastic collision has the greatest final momentum?

A 12 kg mass, moving at 16 m/s, experiences an opposing force of 18 N for 3.0 s. What is the magnitude of the change in momentum of the object?

A 900-kilogram car was traveling north at a constant velocity of 15 m/s. Over 10 seconds, the velocity of the car increased to 20 m/s in the same direction. Which statement describes the change in motion of the car during the 10 second period?

A 12g ball moving 4.0 m/s collides head on and inelastically with a second 12g ball initially at rest. After colliding, the balls move together at the speed

A 2kg ball with an initial speed of 4 m/s sticks to a wall after colliding with the wall. How much kinetic energy is lost during the collision?

The table below shows the velocity and the mass of a golf ball and a bowling ball.

The golf ball and bowling ball undergo an elastic collision. What is the total momentum and energy of the system after the collision?

The diagram shows an inelastic collision between two blocks.

What is the final velocity of the two-block system?

The diagram shows the elastic collision between the moving sphere, sphere 1, and the static sphere, sphere 2.

What is the velocity of sphere 2 after the collision?

A school bus uses petroleum as chemical potential energy. This energy is transferred through the engine, which in turn moves the bus. The movement of the bus is an example of what type of energy?