Question

A man wearing a hat of extended length 12cm is running in rain falling vertically downwards with speed 10m/s. The maximum speed with which man can ru, so that rain drops does not fall on his face (the length of his face below the extended part of the hat is 16cm) will be?

Answer 1

Solutions 

We know that a man is wearing a hat of an extended length of 12cm. The man is running in the rain and the rain is falling vertically downwards with the speed 10m/s. 

We are given the speed ( 10m/s) and we have to find the maximum speed the man can run, so that rain drops don't fall on his face. 

Speed = 10m/s 

Extended part of the hat is 16cm

Extended length 12cm

Calculations 

12cm / 16cm = V / 10m/s 

V = 7.5 m/s 

This means the man must run at 7.5 m/s (27km/h).

Answer 2

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