Question

A triangular block of mass m with angle 30,60 and 90 rest with its 30 90side on horizontal surface , a block of masss m rest on 60 30 side of triangle block . What horizontal accleration a must m have relative to table so that m remain stationary

Answer 1

For the block to be in rest,

mg sinα = ma cosα

a = g tanα

here, α = 30⁰

a = g tan 30⁰

a = g/√3

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