A block of weight 20 N is placed on a horizontal table and a tension T is applied
Channel: Doubtnut
Date: 2020-08-02

A block of weight 20 N is placed on a horizontal table and a tension T is applied on the block . Tension can be increased to 8 N before the block begins to slide . A force of 4 N keeps the block moving at constant speed , once it has been set in motion . Find the coefficients of static friction and kinetic friction].