(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

cubical block of mass m ,edge a,slides down the inclined plane of inclination [tex]\varphi[/tex] with uniform velocity.

torque of normal reaction on the block about its centre is?

3. The attempt at a solution

Torque=mgcos[tex]\varphi[/tex] X a/2

mgcos[tex]\varphi[/tex]sin[tex]\varphi[/tex]a/2

Book says:

mgsin[tex]\varphi[/tex]a/2

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# Homework Help: Torque problem

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