Two bumper cars, Y and X, collide along a straight horizontal track. Bumper car Y, of mass 120 kg120\text{ kg}120 kg (including its driver), is travelling at 4.0 m/s4.0\text{ m/s}4.0 m/s when it collides with bumper car X, of mass 180 kg180\text{ kg}180 kg (including its driver), which is initially stationary. After the collision, both bumper cars travel in the same direction as the initial motion of bumper car Y.
After the collision, bumper car X moves at 2.3 m/s2.3\text{ m/s}2.3 m/s. Show that the speed of bumper car Y after the collision is approximately 0.6 m/s0.6\text{ m/s}0.6 m/s.
Calculate the magnitude of the impulse exerted by bumper car X on bumper car Y.
State the magnitude of the impulse exerted by bumper car Y on bumper car X.
78 exam-style questions on CIE IGCSE Physics Momentum, covering Momentum. Each one has a worked solution and a mark scheme showing where the marks go.