Question

1. In the following situations, identify the agent exerting the force. Also,
the effect of the force in each case.
(a) Squeezing a piece of lemon between the fingers to extract its juice
(b) A person diving into a swimming pool.
(c) A labourer moving a loaded cart.
(d) A car coming to rest once its engine is switched off.
(e) An athelete making a high jump to clear a bar kept at a certain height
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Answer 1

Answer:

here you go

Explanation:

a) In squeezing a piece of lemon, force responsible is muscular force which changes the shape of the lemon and the agent exerting the force is fingers.

(b) In taking out paste from a tube the force changes the shape of the tube and the agent exerting the force are the hands or fingers.

(c) In suspending a load from a spring while other end is on a hook fixed, the force changes the shape of the spring and the agent exerting the force is the load.

(d) In the high jump by the athlete the force acts on the ground and the ground helps the athlete in jumping. The effect os change in motion and the cause id muscular force or friction force.

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