Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A man wants to cross a river 500 m wide. His rowing speed in still water is 3 kmph. The river flows at a speed of 2 kmph. If the man’s walking speed on the shore is 5kmph, (a) find the path he should take to get to the point directly opposite to his starting point in the shortest time. (b) How long does it take to get there?

A man wants to cross a river 500 m wide. His rowing speed in still water is 3 kmph. The river flows at a speed of 2 kmph. If the man’s walking speed on the shore is 5kmph, (a) find the path he should take to get to the point directly opposite to his starting point in the shortest time. (b) How long does it take to get there?

(a) find the path he should take to get to the point directly opposite to his starting point in the shortest time. (b) How long does it take to get there? A man wants to cross a river 500 m wide. His rowing speed in still water is 3 kmph. The river flows at a speed of 2 kmph. If the man's walking speed on the shore is 5kmph