If the power of a motor be 100 kW, at what speed can it raise a load of 50,000 N?

Given, power P = 100 kW = 100 x 10³ W, force F = 50,000 N

Power P = Force (F) x Speed (v)

Substituting the values we get,

$$\begin{aligned}100 \times 10^3 = 50,000 \times v \\[0.5em] \Rightarrow v = \frac{100 \times 10^3 }{50,000} \\[0.5em] \Rightarrow v = 2 m s^{-1}\end{aligned}$$