A coolie of 40 kg weight carries 20 kg salt and climbs up 20 steps of 20
centimeters each in 2 minutes. Calculate the work done by him and his power.
[g= 10 m/s^2]...
Answers
Answered by
28
work done =force × displacement
work done = 60×10×4
work done = 2400 joules
power = work/time
power = MGH/time
power=60×10×4/120
power=2400/120
power= 20watt
Similar questions