Two bodies P and Q

PHYSICS · Subjective · AP · Physics 1: Algebra-based · Linear Momentum · Linear Momentum

Problem

Two bodies P and Q, each of mass

2\,\text{kg}

, collide on a frictionless horizontal table. Just before impact, P has momentum

3\,\text{kg m s}^{-1}

due east while Q is at rest. After the collision, P moves with momentum

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

making an angle of

60^\circ

north of east. Calculate the magnitude and direction of the momentum of Q immediately after the collision.