Question

10. A machine does work of 25 kj
in 3 minutes and 20 s. Calculate the power of the
machine in kilowatts.​

Answer 1

Answer:

power = work done /time taken

Explanation:

here,

power = 25 × 1000 / (3×60)+20

P = 125 watt

in question it is asked for kilowatt so,

in terms of kilowatt P = 0.125 kilowatt

Answer 2

Answer:

ENERGY = WORK =25000

TIME=3MINS&20SEC (3×60)+20

POWER IN KW

P=E/T=25000/200

=125WATT

125/1000

=0.125KW