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igcse physics notesprinted 40 · PDF 40
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printed 40 · PDF 40
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Aitchison College Academic Resources.
QUESTION:5
An object of mass 3.0kg, travelling at a speed of 6.0m/s, collides with an object of mass 2.0kg,
travelling in the opposite direction at a speed of 2.0m/s.
6.0m/s—————— > 2.0m/s
The objects stick together during the collision.
What is the speed and direction of the combined mass after the collision?
4.4m/s to the left
4.4m/s to the right
2.8m/s to the left
2.8m/s to the right
QUESTION:6
A car of mass 1000kg travelling at 8.0m/s collides with a lorry of mass 3000 kg that is travelling
at 2.0m/s in the same direction. After colliding, the two vehicles stick together.
=o wD >
What is their speed after the collision?
A 20m/s B 2.5m/s C 3.5m/s D 5.0m/s
QUESTION:7
A footballer kicks a stationary football.
His foot is in contact with the ball for 0.050 s.
The mass of the ball is 0.40 kg.
The speed of projection of the ball is 25m/s.
What is the average force exerted on the ball by his foot?
A 0.32N B 0.50N C 200N D 1300N
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