A puck slides on ice at and overtakes a second puck of unknown mass moving in the…

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

Problem

2.0\,\text{kg}

puck slides on ice at

4.0\,\text{m/s}

and overtakes a second puck of unknown mass

m

moving in the same direction at

2.0\,\text{m/s}

. The pucks stick together and continue at

3.0\,\text{m/s}

. What is the value of

m

? (a)

2.8\,\text{kg}

(b)

0.67\,\text{kg}

(c)

2.0\,\text{kg}

(d)

2.67\,\text{kg}