A hockey puck slides toward the east on frictionless ice

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

0.50\,\text{kg}

hockey puck slides

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

toward the east on frictionless ice. It collides head-on with a

0.30\,\text{kg}

puck moving

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

toward the west. The pucks stick together. Determine the magnitude and direction of their shared velocity just after the collision.