In a bicycle, the radius of rear wheel is twice the radius of the front wheel. If $R_{f}$ and $R_{r}$ are the radii, $V_{f}$ and $V_{r}$ are the speeds of top most point of wheel then:

V_{r} = 2 V_{f}

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V_{f} = 2 V_{r}

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V_{f} = V_{r}

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V_{f} > V_{r}

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Solution

The correct option is C $V_{f} = V_{r}$
Given : $R_{r} = 2 R_{f}$
$V_{r} & V_{f}$ are speed at topmost point wheels.
Their angular speeds are different but linear speed will remain same i.e,
$V_{r} = V_{f}$

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