Question

79. A man runs along a horizontal road holding his umbreia
vertical in order to afford maximum protection from rain.
The rain is actually:
(a) Falling vertical
(b) Coming from front of the man
(b) Coming from the back of the man
d) Either of (a), (b) or (c).​

Answer 1

Answer:

A man runs along a horizontal road holding his umbrella falling vertical.

Explanation:

Option (a) is correct.

Answer 2

Answer:

Falling vertical option A is right

Explanation:

Solution

Assume you're traveling to the right and rain is coming down vertically. It will be the same as if you were standing stationary and rain was falling while moving to the left, using the concept of relative motion. As a result, the rain will have velocities along the x (left) and y (right) axes (downwards).

The resultant velocity is determined by the vector sum of the x and y components, which will be slanted at an angle to the horizontal, necessitating the use of a tilted umbrella.

In the case of the sun, the difference is that the light velocity is significantly higher, and the resultant vector is nearly vertical.

#SPJ6