Question

A crane can lift 5000 kg mass to the height 10m in 10 sec. What is its power?​

Answer 1

power is rate of doing work
work done = force x distance

force is ma
5000 x 10
50000
or 5000x 9.81
49,050

rate means divide by time
49,050/50000 divide by 10

4905/5000W

Answer 2

49.050 KW

Step-by-step explanation:

work done = PE

= mgh

=5000×9.81×10

=490500J

power = workdone/Time taken

= 490500/10

= 49050 watts

= 49.050kW