A man wearing a hat of extended length 12 cm is running in rain falling downwards with speed 10 m/s. The maximum speed with which man can run, so that rain drops do not fall on his face (the length of his face below the extended part of the hat is 16 cm will be :
Why this Question ? If rain drops are falling vertically with respect to ground then they will appear falling at some angle with respect to a moving observer. |