Physics

Problem

0.5\,\text{kg}

puck slides on frictionless ice at

6\,\text{m s}^{-1}

and collides with a second puck of mass

1.0\,\text{kg}

that is initially at rest. The two pucks stick together. Calculate the speed of the combined mass immediately after the collision. a)

4\,\text{m s}^{-1}

2\,\text{m s}^{-1}

3.0\,\text{m s}^{-1}

3.46\,\text{m s}^{-1}