How much work will Normal do? - Part II

Classical Mechanics Level 1

When you stand on an escalator that takes you up, what is the work done by the escalator on you?

Negative Positive Zero

1 solution

Anubhav Tyagi
Dec 29, 2016

Work Done = F.x= Fx $\cos\theta$ . Since $0<\theta <$ $\frac{\pi}{2}$ . Thus $\cos\theta$ is positive . Hence work done by Normal force is positive