35. Maximum frictional force on a block of mass 20 kg being pulled horizontally on a rough horizontal surface is (u = 0.1 (1) ON (2) 20 N (3) 10 N (4) Insufficient data
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20N
frictional force acts opposite to the force applied.
also normal reaction is equal to mg, therefore from there we find out the value of N
then by using the formula f= uN, we get the desired result
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