A2L Item 289

Goal: Unspecified.

Source: Unspecified.

A block of mass 2 kg travels along a horizontal frictionless surface
with velocity 3 m/s. The mass collides with another mass, m, and
rebounds with velocity 1 m/s. Mass m is initially at rest. What is the
kinetic energy of mass m after the collision?

  1. 10 J
  2. 6 J
  3. 2 J
  4. -4 J
  5. -8 J
  6. None of the above.
  7. Not enough information.


None provided.