In the given figure, a = 15 m s - 2 represents the total acceleration of a particle moving in the clockwise direction in a circle of the radius R = 2 .5 m at a given instant of time. The speed of the

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In the given figure, a = 15 m s - 2 represents the total acceleration of a particle moving in the clockwise direction in a circle of the radius R = 2 .5 m at a given instant of time. The speed of the particle is NEET 2016 (Phase 2)

TestHub · Accepted Answer

Centripetal acceleration is the radial component of resultant acceleration.

Referring the figure in question, radial component of the resultant acceleration,

$= 15 \cos 30 ° = 15 \times \frac{\sqrt{3}}{2}$

$\Rightarrow \frac{v^{2}}{r} = 15 \times \frac{\sqrt{3}}{2}$

$\Rightarrow v = \sqrt{15 \times \frac{\sqrt{3}}{2} \times 2.5} ≃ 5.7 m s^{- 1}$ .

Physics - Circular Motion Question with Solution | TestHub

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