Home
Class 12
PHYSICS
When a man moves down the inclined plane...

When a man moves down the inclined plane with a constant speed `5 ms^-1` which makes an angle of `37^@` with the horizontal, he finds that the rain is falling vertically downward. When he moves up the same inclined plane with the same speed, he finds that the rain makes an angle `theta = tan^-1 (7/8)` with the horizontal. The speed of the rain is

A

`sqrt(116) ms^(-1)`

B

`sqrt(32) ms^(-1)`

C

`5 ms ^(-1)`

D

`sqrt(73) ms ^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

A man walking with a speed of 3 km/h finds the rain drops falling vertically downwards. When the man increases his speed to 6km/h he find that the rain drops are falling making an angle of 30^(@) with the vertical . Find the speed of the rain drops ( in km/h)

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

A stationary man observes that the rain is falling vertically downwards. When he starts running a velocity of 12 kmh^(-1) , he observes that the rain is falling at an angle 60^(@) with the vertical. The actual velocity of rain is

A man starts running along a straight road with uniform velocity observes that the rain is falling vertically downward. If he doubles his speed, he finds that the rain is coming at an angle theta to the vertical. The velocity of rain with respect to the ground is :

A man starts running along a straight road with uniform velocity observes that the rain is falling vertically downward. If he doubles his speed, he finds that the rain is coming at an angle theta to the vertical. The velocity of rain with respect to the ground is :

A person walking ,on a horizontal road at 2 km/h finds that the rain is falling vertically . Now the person increasses his speed to 4 km/h and find that rain makes an angle 45^(@) with the vertical . Find the velocity of rain with respect to the road.

A man is running up an inclined plane ( making an angle theta with the horizontal ) with a speed u. Rain drops falling at an angle alpha with the vertical appear to the man as if they are falling at an angle of 45^(@) with the horizontal . The speed of the rain drops is

There are two incline planes AO and OB inclined at 45^(@) and 60^(@) respectively with the horizontal as shown in the figure. When a man moves on the inclined plane AO he is oberves that the rain drops are falling 45^(@) with the vertical. When the man moves on the inclined plane OB , he observes that the raindrops are falling vertically downward with the horizontal. Then actual speed of rain is

A man is travelling at 10.8 kmph in a topless car on a rainy day. He holds an umbrella at an angle of 37^(@) with the vertical so that he does not wet. If rain drops falls vertically downwards, what is the rain velocity ?