A particle moves along a circle of radius 20/π m with constant tangential acceleration. If the velocity of the particle is 80m/s at the end of the second revolution after motion has begun, the tangential acceleration is

Options

(a) 640 π m/s²
(b) 160 π m/s²
(c) 400 π m/s²
(d) 40 m/s²

Correct Answer:

40 m/s²

Explanation:

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