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Subjects / LC Applied Mathematics / Modelling the physical world: kinematics and dynamics (spec Strand 3)

Momentum, impulse and collisions

Use conservation of momentum, impulse and Newton's experimental law for direct collisions.

5th Year6th Year HigherOrdinary
Helps to know first: Forces and Newton's laws
15practice questions

Match the pairs: 1 · Multiple choice: 5 · Numeric answer: 8 · Short answer: 1

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Numeric answer
A trolley of mass 6 kg moving at 20 m/s collides with a stationary trolley of mass 2 kg. They stick together. Find their common speed just after the collision, correct to 2 decimal places.
Whole numbers, decimals (2.5) or fractions (3/4).
Hint 1

Momentum is conserved in the collision.

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