Question

15 knmetre of work is done by crane in 30 second then power developed kw? -​

Answer 1

GIVEN:

Work done by crane = 15knmetre

time taken by crane = 30sec

TO FIND:

power developed by crane = ?

SOLUTION:

As work done by crane is given as 15knmeter and time taken given is 30sec.

so power can be calculated by its formula.

i.e, P = W/ t

where P is power W is work done and t stands for time taken

therefore,

P= 15/30

P= 0.5 kw

the SI unit of power is watts (W).

so the power came out to be 0.5kw when its work done is 15knmeter and time taken is 30sec.