Question

If you have applied 40 W power to lift a body of mass 25 kg to a height of 4m. How much time do you require? WIth process

Answer 1

So we should add 40+25=65

=so now we should do 65 ➗ 4m=16.25

Answer 2

Explanation:

p=w/t

so, p=mgh/t

40w=25×10×4/t

so, t=25×10×4/40

t=1000/40

t=25 second