8toy car b is stationary and toy car a is pushed so
that it hits b at 1.2 m s on a smooth horizontal
plane (fig d). during the collision, toy car b
accelerates at 3 m s2 for 0.5 s on average. toy cars
a and b are of mass 3 kg and 1 kg respectively.
1.2 ms
fig d
(a) what is the average force acting on b by a
during the collision?
(b) what is the average force acting on a by b
during the collision?
ef(c) find the velocity of toy car a after the collision.