Question

Remarks Because the impact is inelastic, it would be incorrect to equate the initial kinetic energy of the incoming bullet to the final gravitational potential energy associated with the bullet-block combination. The energy isn't conserved!

Question---- The ways that mechanical energy is lost from the system in this experiment include: (Select all that apply.)

1) energy loss from the change in height of the block.

2) energy loss because the kinetic energy of the bullet becomes the kinetic energy of the block and bullet.

3) friction to bring the bullet to a stop relative to the block.

4) deformation of the bullet as it enters the wood.

5) friction to bring the bullet to a stop relative to the ground.

6) work in deforming the block.

Answer 1

The energy is lost due to the dissipative forces between the block and bullet. The energy lost are in the following ways:

(4) Deformation of the bullet as it enters the wood.

(5) Friction to bring the bullet to stop relative to the block.

(6) Work in deforming the block.