1.

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 ?

Answer»

`1 MS^(-1)`
`2 ms^(-1)`
`3 ms^(-1)`
`4 ms^(-1)`

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