A solid disc of radius r rolls without slipping on the horizontal floo – McqOptions

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1.	A solid disc of radius r rolls without slipping on the horizontal floor with angular velocity ω and angular acceleration α. The magnitude of acceleration of the point of contact on the disc is
A.	zero
B.	rα
C.	\(\sqrt {{{\left( {r\alpha } \right)}^2} + {{\left( {r{\omega ^2}} \right)}^2}}\)
D.	rω2
Answer» E.

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