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Selina Solutions Class 9 Physics Solutions for Exercise 3B in Chapter 3 - Chapter 3 Laws Of Motion

Question 23 Exercise 3B

A tennis ball and a cricket ball, both are stationary. To start motion in them:

(a) A less force is required for the cricket ball than for the tennis ball

(b) A less force is required for the tennis ball than for the cricket ball

(c) The same force is required for both the balls

(d) Nothing can be said

Answer:

(b) A less force is required for the tennis ball than for the cricket ball

Cricket ball is more massive than tennis ball hence cricket ball acquires much smaller velocity than a tennis ball when the two balls are pushed with equal force for the same duration.

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