Question

A student opens his laptop with a 2.0-N force at an angle of 70O. Find the

torque on the cover of the laptop if the laptop is 20.0 cm wide.

Answer 1

The torque on the cover of the laptop is

$$\tau=F\text{ sin}\theta w=2\text{ sin}70°·0.2=0.38\text{ N-m}.$$