Question

The maximum value of M upto which the system can be in equilibrium. (Note: This is a JEE Mains model question on friction).

Answer 1

Answer:

1)4kg

Explanation:

1)4kg

is the correct answer of this question.

Given: The maximum value of M upto which the system can be in equilibrium.

To find: The maximum value of M upto which the system can be in equilibrium

Solution:

I think you forgot to mention the value of coeff. of friction.

if surface is smooth then equilibrium cant be attained

but lets take it rough and coeff of friction = µ

Now, T s i n 6 0  º = µ 1 2 g

        T c o s 6 0 º = M g

T a n 6 0 º = 1 2 µ / M

 M = 4 √ 3 µ

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