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AP EAMCET2015PhysicsMotion in Two Dimensions

A man running at a speed of 5 ~km / h , find that the rain falls vertically. When he stops running, he finds that the rain is falling at an angle of 60^ with the horizontal. The velocity of rain with respect to running man is

Options

  1. A5 3 ~km / h
  2. B5 3 2 ~km / h
  3. C4 3 2 ~km / h
  4. D5 3 ~km / h

Correct answer

D. 5 3 ~km / h

Step-by-step solution

Consider the situational diagram as shown below aligned & In OAP , 30^ = v_m v_ r m & 1 3 = Velocity of man Velocity of rain with respect to man & v_ r m = 5 1 / 3 =5 3 ~km / h aligned

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