Question

If the power of a motor be 10kW, at what speed can it raise a Load of 500N ?

Answer 1

Answer:

F-50000N , hence the moter can lift a load with a speed of2ms-1

Answer 2

Answer:

200 m/s

Explanation

• When force and velocity are constant ,we use the formula P = F × V.

• F and V in S.I. unit fetches P in watt ( W)

• 1 kW = 1000 W.

Calculations

Given, P = 10 kW = 10,000 W

and ,F = 500 N

P = F × V

=> 10,000 = 500 × V

=> V = 200 m\s Ans.