Question

find the work done by a man if he carries 60kg up to distance 3m​

Answer 1

Answer:

Total work done = p.e at top - p,e at bottom = 60* 9.8 *3. Time taken = 4 seconds. So Power developed = work done/ time taken = 60* 9.8 *3 / 4 = 15 * 9.8 * 3 = 441 Watts.