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Most Important Selected Qs for JEE AdvancedPhysicsLaws of Motion

A uniform ring of mass m is placed on a rough horizontal fixed surface as shown in the figure. The coefficient of friction between the left part of the ring and left part of the horizontal surface is ₁=0.6 and between right half and the surface is ₂=0.2 . At the instant shown, now the ring has been imparted an angular velocity in clockwise sense in the figure shown. At this moment magnitude of acceleration of centre

Correct answer

4

Step-by-step solution

aligned & 2 [ ₀^ / 2 ( ₁- ₂ ) R g d ]=2 ( ₁- ₂ ) R g & a= 2 ( ₁- ₂ ) R g 2 R =4 aligned

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