(D) In uniform circular motion,the speed of the body remains constant over time.Tangential acceleration $(a_t)$ is defined as the rate of change of th

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(D) In uniform circular motion,the speed of the body remains constant over time.Tangential acceleration $(a_t)$ is defined as the rate of change of the magnitude of velocity (speed) with respect to time.Mathematically,$a_t = \frac{dv}{dt}$.Since the speed '$v$' is uniform (constant),its derivative with respect to time is zero.Therefore,$a_t = 0$.

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

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$A$ body is revolving with a uniform speed '$v$' in a circle of radius '$r$'. The tangential acceleration is:

MHT CET 2020 All MHT CET

A
$\frac{v}{r}$
B
$\frac{v^{2}}{r}$
C
$\frac{v}{r^{2}}$
D
zero

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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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$A$ body is revolving with a uniform speed '$v$' in a circle of radius '$r$'. The tangential acceleration is:

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