A boy throws up a ball in a stationary lift and the ball returns to his hands in 10 s. Now if the lift starts moving up at a speed of 5 m/s. The time taken for a ball thrown straight up to return to his hands is:

more than 10 s

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insufficient information given

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less than 10 s

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equal to 10 s

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Solution

The correct option is D
equal to 10 s

The uniform velocity of the lift does not affect the relative velocity of the ball with respect to the boy. So, the ball will still return in 10 s.

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A boy throws up a ball in a stationary lift and the ball returns to his hands in 10 s. Now if the lift starts moving up at a speed of 5 m/s. The time taken for a ball thrown straight up to return to his hands is:

The correct option is D equal to 10 s The uniform velocity of the lift does not affect the relative velocity of the ball with respect to the boy. So, the ball will still return in 10 s.

The correct option is D
equal to 10 s

The uniform velocity of the lift does not affect the relative velocity of the ball with respect to the boy. So, the ball will still return in 10 s.