GK
PHYSICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
east
|
|
|
west
|
|
|
northeast
|
|
|
southeast
|
Detailed explanation-1: -As the man is moving in the east direction as per the question so the velocity of rain is west with respect to man. So, velocity of the rain with respect to man is west, hence the rain will appear to come from east for man.
Detailed explanation-2: -Rain is falling vertically downwards with a velocity of 4 km/h. A man walks in the rain with a velocity of 3 km/h. The raindrops will fall on the man with a velocity of magnitude. No worries!
Detailed explanation-3: -To a man running at the rate of 4 km/h, the rain appears to fall vertically.
Detailed explanation-4: -When it rains vertically down, to a man walking on road the velocity of rain appears to be 1.5 times his velocity. To protect himself from rain he should hold the umbrella at vertical.
Detailed explanation-5: -Solution : A man walking in a rain can protect himself if he holds his snbrella in the direction of re, atove velocity of of rain w.r.t. himself.