Physics, asked by Sukhdeep5766, 1 year ago

Find an expression for the work done against friction when a body is made to slide over a rough horizontal surface

Answers

Answered by Anushka0408
16
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

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