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Momentum Questions

Q3. The diagram represents an experiment that can be used to investigate stopping distances for a moving trolley.

The trolley is placed on the raised section of the track. When released it moves down the track and then travels along the horizontal section before colliding with the block. The trolley and block join and move together after the collision. The distance they move is measured.

(a) State the main energy changes taking place

(i) as the trolley descends,

(ii) after the collision, as the trolley and block move together.

(2 marks)

(b) Describe how the speed of the trolley, just before it collides with the block may be measured experimentally.

(3 marks)

(c) State and explain how the speed of the trolley, prior to impact could be varied.

(2 marks)

(Total 7 marks)