1.

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 willA. gradually increaseB. gradually decreaseC. first decrease then increaseD. first increase

Answer» Correct Answer - B
`omega^(2)R = R(d omega)/(dt), omega = (d theta)/(dt) = (omega_(0))/(1-omega_(0)t) implies T = (R )/(v_(0)) (1-e^(-pi))`


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