Magnitude of centripetal force acting on a body of mass m executing uniform motion in a circle of ra

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3-2.Motion in Plane

easy

The magnitude of the centripetal force acting on a body of mass $m$ executing uniform motion in a circle of radius $r$ with speed $v$ is

A$mvr$

B$m{v^2}/r$

C$v/{r^2}m$

D$v/rm$

Solution

(b) $\mathrm{P}=\mathrm{mv}$
SO $\mathrm{V}=\mathrm{P} / \mathrm{m}$
so radial force is $=\mathrm{mv}^ 2 / \mathrm{r}$

Standard 11

Physics

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