Find an expression for the work done against friction when a body is made to slide over a rough horizontal surface
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hey!!
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Let the force applied to displace the block be = F
the displacement is = d
the friction be = f= uN {where u is the coefficient of friction and N is the normal force}
now, we know that :-
work done
=> force × displacement
=> (F - f) ×d
=> (F- uN) x d
_______________◆
___________◆
Let the force applied to displace the block be = F
the displacement is = d
the friction be = f= uN {where u is the coefficient of friction and N is the normal force}
now, we know that :-
work done
=> force × displacement
=> (F - f) ×d
=> (F- uN) x d
_______________◆
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