Question 1 Report

How long will it take a 60kg man to climb a height of 22m if he expended energy at a rate of 0.25kW. [g = ms-2]

Answer Details

power = mgh

0.25 x 103 = 60×10×22t $\frac{60\times 10\times 22}{t}$

t = 52.8 sec