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Most Important Selected Qs for JEE AdvancedPhysicsLaws of Motion

The wedge shown in the figure can slide without friction on a horizontal tabletop. The mass of the wedge is M and its angle of elevation is a=30^ . A body of mass m slides down without friction along the wedge, the path of the body makes an angle of =60^ with the ground. Find the ratio of the masses, m / M .

Correct answer

2

Step-by-step solution

aligned & a₁ [90^ -( - ) ]=a₂ & a₁ ( - )=a₂ aligned ...(i) Conservation has no acceleration x direction M a₂=m a₁ ...(ii) From (i) and (ii) m M = ( - ) m M = - m M = 60- 30 30 =2

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