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Question

A solid cylinder is performing pure rolling motion on a moving platform as shown. Which of the relation between, v0,ω,R and v is correct?


A
v0=Rω
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B
v=v0+Rω
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C
v=v0Rω
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D
v=v0
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Solution

The correct option is C v=v0Rω
This is a direct question based on concept of pure rolling. For no slipping relative velocity of point of contact has to be zero. Here velocity of the bottom-most point on cylinder is v0Rω, and velocity of platform is v. So, from definition of pure rolling, (v0Rω)v=0v=v0Rω

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