Physics

Problem

2\,\text{kg}

trolley rolling to the right at

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

collides head-on with a stationary

3\,\text{kg}

trolley. The trolleys stick together and the impact lasts

0.050\,\text{s}

. What is the magnitude and direction of the average force exerted on the

2\,\text{kg}

trolley during the collision? a)

96\,\text{N}

to the right b)

160\,\text{N}

to the left c)

96\,\text{N}

to the left d)

48\,\text{N}

to the left