An otter of mass 7.50 kg7.50\text{ kg}7.50 kg leaps horizontally and lands on a stationary floating log.
The otter lands on the log with a horizontal velocity of 4.80 m/s4.80\text{ m/s}4.80 m/s.
State the relationship between momentum, mass and velocity.
The log has a mass of 1.50 kg1.50\text{ kg}1.50 kg.
Using ideas about conservation of momentum, calculate the combined velocity of the otter and the log immediately after the otter lands on it.
The otter stands on the stationary floating log. It then suddenly kicks a heavy stone forwards.
Explain what happens to the otter and the log.
56 exam-style questions on Edexcel IGCSE Physics Forces, movement, shape and momentum. Each one has a worked solution and a mark scheme showing where the marks go.