1) An 8.0-kg box slides on a frictionless surface with a speed of 15 m/s

A) What form of energy does this box have? How much energy?

B) The box slides into a spring with a spring constant of 100 W/m, compressing the spring and bringing the box to a stop. What energy transformation took

place?

C) By what distance was the spring compressed?

2.) A 35-kg boy is on a swine: The mi in us her ft he reaches is 19 meters above

the boy's lowest part of the swing.

A) What is the boy's total energy at the maximum height?

B) What energy transformation takes place as the boy swings to the bottom?

C) What is the amount of kinetic energy that the boy has at the bottom of the swing?

3) Two carts are moving towards one another on a frictionless track, Cart A has a mass of 2.00 kg and an initial speed of 2.00 m/s. Cart B has a mass of 1.00 kg and has a speed of 4.00 m/s. They undergo an inelastic collision. Complete the momentum table. Include values in each box and a vector (roughly scaled).

Pi Pf Cart A Cart B O System XO O