Which one of the following expressions gives the average power of a machine that…

PHYSICS · Single correct · CBSE · Physics · Work and Energy · Work and Energy

Problem

Which one of the following expressions gives the average power

P

of a machine that performs work

W

in time

t

? (a)

P = \dfrac{W}{2t}

(b)

P = \dfrac{W}{t}

(c)

P = \dfrac{2W}{t}

(d)

P = \dfrac{3W}{2t}