(a) When two bodies X and Y collide with each other, X exerts a force of 5 N on Y towards the East. What is the force exerted by Y on X ? Justify your answer stating the law.
(b) A circular groove is provided in a saucer to place the cup of tea in it. Give reason.
CBSE Class IX Science SA 2 (3 Marks)
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(a) Force exerted by Y on X is 5 N in west direction i.e., — 5 N
This is because of Newton's third law of
motion - "To every action there in an equal and opposite reaction."
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