A toy dart of mass 0.050 kg is fired at a stationary target of mass 0.250 kg. The dart stops moving horizontally and drops straight down instantly after hitting the target. In order to knock the target off its stand, the target must be made to move at a speed of at least 0.40 m/s immediately after the collision.
What is the minimum speed with which the toy dart must be fired in order to knock the target off its stand?
0.08 m/s0.08\text{ m/s}0.08 m/s
0.40 m/s0.40\text{ m/s}0.40 m/s
2.0 m/s2.0\text{ m/s}2.0 m/s
10.0 m/s10.0\text{ m/s}10.0 m/s
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.