Question

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Answer 1

M'g = 4mg sin30+ mgsin30° -mg cos30°

M' = 4m/2 + m/2 - msqrt3

M'= m(5 - sqrt3)

M' = -m(sqrt 3 - 5)

negative sign indicate direction which is opposite

so

M' = m( sqrt 3 -5)

option _ 4 may be help you bro