Chapter 7, Problem 13MCQ

To determine

The correct ${\nu }_2$-versus-$m_1$ graphs from options (a) to (c), when the two toy cars are placed on horizontal tables and both of them are connected with a light compressed spring as shown in the figure. The spring tries to push the cars apart, but they are tied together by a thread. When the thread is burned, the spring pushes the cars apart. It is investigated how the final speed of the car 2 depends on the mass of the car 1 and several experiments are run by changing $m_1$ and measuring ${\nu }_2$ while keeping the compression of the spring and mass of the car 2 constant.

The choices are given as follows:

a.

b.

c.