The raindrops are hitting the back of a ...

The raindrops are hitting the back of a man walking at a speed of `5km//hr`. If he now starts running in the same direction with a constant acceleration, the magnitude of the velocity of the rain with respect to him will

gradually increase

gradually decrease

first decrease then increase

first increase then decrease

Text Solution

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The magnitude will decrease till the direction of the velocity with respect to man becomes vertical. It will increase thereafter.

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