Question

7. 20 m? A crane lifts a load of 6000 N at the height of 20 m in 5 seconds. Calculate the power of the crane in horse power.​

Answer 1

Answer= 24000J

Power = workdone / time
= 120 000/ 5
=24000J


Workdone = force * displacement
= 6000* 20
= 120000