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

User Nadir Laskar
by
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2 Answers

21 votes
21 votes
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
User Luk Aron
by
2.8k points
25 votes
25 votes

Answer:

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

User Amit Bhardwaj
by
2.8k points
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