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Question

# A wheel is rolling without slipping on a horizontal plane with velocity v and acceleration a of centre of mass as shown in figure. Acceleration at

A
A is vertically upwards
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B
B may be vertically downwards
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C
C cannot be horizontal
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D
a point on the rim may be horizontal leftwards
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Solution

## The correct options are A A is vertically upwards B B may be vertically downwards C C cannot be horizontal D a point on the rim may be horizontal leftwardsNet acceleration of any point on the rim is vector sum of a,Rω2 and Rα with a=RαaA=Rω2→ vertically upwardsIf a=Rω2,aB is vertically downwards and so on.

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