A trolley moving at collides head-on with a trolley that is at rest

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Linear Momentum · Linear Momentum

Problem

3\,\text{kg}

trolley moving at

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

collides head-on with a

2\,\text{kg}

trolley that is at rest. After impact the first trolley moves at

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

in the original direction and the second at

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

in the same direction. What is the coefficient of restitution for this collision? (a)

0.50

(b)

0.67

(c)

1.00

(d)

0.33