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
- A5 3 ~km / h
- B5 3 2 ~km / h
- C4 3 2 ~km / h
- 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