A man is rowing a boat upstream and inspite of that the boat is found to be not moving with respect to the bank. The work done by the man is

A man is rowing a boat up a stream w.r.t the shore. Is he doing a work? Explain.

A man is rowing upstream and is at rest w.r.t. shore. Is he doing work w.r.t shore?

A man rowing a boat upstream is at rest with respect the bank. STATEMENT-1: The man is doing no work with respect to ground. STATEMENT-2: The man is doing a positive work with respect to stream. STATEMENT-3: Work done does not depend in frame of reference.

A man rowing a boat upstream is at rest with respect the bank. STATEMENT-1: The man is doing no work with respect to ground. STATEMENT-2: The man is doing a positive work with respect to stream. STATEMENT-3: Work done does not depend in frame of reference.

A amn rowing a boat upstream is at rest with respect to shore. (a) Is he doing any work ? (b) If he stope rowing and moves down with the stream, is any work being done on him ?

Speed of a boat in still water is 12 km/h and that of the current is 3 km/h. A man rows a boat upstream up to 135 km and returns downstream to the starting point. Find the total time taken for the entire journey in hours.