Question

Two block a(3kg)b(7kg) rest one over the other on a smooth horizontal plane. the coefficient of friction between a and b is equal to 0.3. the maximum horizontal force that can be applied to b in order that a and b do not have relative motion is :

Answer 1

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Answer 2

Answer:

The maximum horizontal force is 300N.

Explanation:

let, the masses of the blocks be m1 and m2

    coefficient of friction be p

    force be F

here, m1= 3kg and m2= 7kg

         p = 0.3 and g=10

we know, F= p(m1+m2)g

                F = 0.3(3+7)10

                F = 300 N

So, the maximum horizontal force is 300N.