Question

A crane used 136.65 watts of power to raise a 16.22 N object in 4.97 seconds. Through what vertical distance was the object displaced?

Answer 1

Given,

Power, P = 136.65 watts

Force, F = 16.22 N

Time, t = 4.97 seconds

The work done is calculated by the given formula,

`W=F* d`

Now, the formula of power is given by

`\begin{gathered} \text{Power = }\frac{W\text{ork done}}{\text{Time}} \\ \text{P = }(F* d)/(T) \\ d=(P* t)/(F) \\ d=\frac{136.65\text{ W}*4.97\text{ s}}{16.22\text{ N}} \end{gathered}`

Thus, the vertical distance is

`d=41.87\text{ m}`