Find the linear speed of sphere when it starts pure rolling.

v = \frac{v_{0}}{7}

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v = \frac{{2 v}_{0}}{7}

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v = \frac{{3 v}_{0}}{7}

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v = \frac{{4 v}_{0}}{7}

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Solution

The correct option is D $v = \frac{{4 v}_{0}}{7}$
Linear speed at time $t = \frac{3 v_{0}}{7 μ g}$ is
$v = v_{0} - μ g \frac{3 v_{0}}{7 μ g} = \frac{{4 v}_{0}}{7}$

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Find the linear speed of sphere when it starts pure rolling.

The correct option is D v=4v07Linear speed at time t=3v07μg isv=v0−μg3v07μg=4v07

The correct option is D $v = \frac{{4 v}_{0}}{7}$
Linear speed at time $t = \frac{3 v_{0}}{7 μ g}$ is
$v = v_{0} - μ g \frac{3 v_{0}}{7 μ g} = \frac{{4 v}_{0}}{7}$