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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > During a rainy day, rain is falling vertically with a velocity 2m//s A boy at rest starts his motion with a constant acceleration of 2m//s^(2) along a straight road . Find the rate at which the angle of the axis of umbrella with vertical should be changed so that the rain always falls parallel to the axis of the umbrella.

During a rainy day, rain is falling vertically with a velocity 2m//s A boy at rest starts his motion with a constant acceleration of 2m//s^(2) along a straight road . Find the rate at which the angle of the axis of umbrella with vertical should be changed so that the rain always falls parallel to the axis of the umbrella.

A man moving with 5ms ^ −1 observes rain falling vertically at the rate of 10ms^ −1 . Find the speed and direction of the rain with respect to ground. During a rainy day