Physics

Physics

Problem

A

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}

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