Friction:-The necessary evil

A block is placed over a a smooth plane floor made up of some other matirial such that the plane is perlal to the ground.At time t=0s the angle between plane and ground started increasing (without any acceleration) when angle between plane and ground become equal to 45 degrees the block placed over it just begon to slide down

Calculate the coefficiant of static friction between the matirials of block and plane


The answer is 1.

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1 solution

Suresha Hd
Aug 21, 2014

Co-efficient of friction is tangent of the angle given. So μ=tanθ i.e. tan(45) then μ=1. Simple as that!!

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