A ball moving along a straight line at strikes a ball moving in the same direction at

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

Problem

2.0\,\text{kg}

ball

P

moving along a straight line at

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

strikes a

1.0\,\text{kg}

ball

Q

moving in the same direction at

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

. After the collision, the speed of ball

P

is observed to be

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

in the same direction. Determine the coefficient of restitution of the collision.