(C) Given radius $r = 25\, cm = 0.25\, m$. Frequency $f = 2\, rev/s$. The angular velocity is given by $\omega = 2\pi f = 2\pi \times 2 = 4\pi\, rad/s

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(C) Given radius $r = 25\, cm = 0.25\, m$. Frequency $f = 2\, rev/s$. The angular velocity is given by $\omega = 2\pi f = 2\pi \times 2 = 4\pi\, rad/s$. The centripetal acceleration $a_c$ is given by the formula $a_c = r\omega^2$. Substituting the values: $a_c = 0.25 \times (4\pi)^2$. $a_c = 0.25 \times 16\pi^2$. $a_c = 4\pi^2\, m/s^2$.

Class 11 Physics 3-2.Motion in Plane Angular Variables and Basic of Uniform Circular Motion

Medium

$A$ particle moves in a circle of radius $25\, cm$ at two revolutions per second. The acceleration of the particle in $m/s^2$ is

AIIMS 2012 All AIIMS

A
${\pi ^2}$
B
$8\,{\pi ^2}$
C
$4\,{\pi ^2}$
D
$2\,{\pi ^2}$

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3-2.Motion in Plane

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Angular Variables and Basic of Uniform Circular Motion

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