I'm out playing near a frozen pond. On the pond is a block of ice (initially at rest) with mass 23.0 kgkg . I slide a different ice block of mass 1.05 kgkg so that it collides with the stationary block. Just before impact (long after I stopped pushing it), the moving block has speed 5.75 m/sm/s . Ignore friction with the pond. When the blocks collide they stick together and move off as a unit.


Required:

What is the change ΔK= K_final- K_intial in two block-snowball system's kinetic energy due to the collision?