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Questions  

The string of a step rolling wheel is pulled by applying force F with different lines of action in two situations as shown. The wheel starts rolling without slipping due to application of the force. 

a
The wheel rolls to the right in situation I and to the left in situation II.
b
The wheel rolls to the left in situation I and to the right in situation II.
c
The wheel rolls to the right in both situations.
d
The wheel rolls to the left in both situations.

detailed solution

Correct option is A

(Pure rotation about instantaneous point of contact)Note: If line of action passes through point of contact, it only spins.

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