Question

Two adjacent students stand on stationary skateboards, face each other, and

push apart. The skateboarder on the left weighs 55 kg, the one on the right is
65 kg. If the lighter skateboarder moves at 4.2 m/s, determine the speed and
direction of the heavier skateboarder.

Answer 1

so the heavy skateboarder will move off with speed 2.45 m/s in the opposite direction