A particle moves along a circle of radius 20πm with constant tangential acceleration. If the velocity of the particle is 80m/s at the end of the second revolution after motion has begin, the tangential acceleration is
A
40πm/s2
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B
160πm/s2
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C
240πm/s2
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D
640m/s2
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Solution
The correct option is A40πm/s2 Total distance traveled in a revolution =2×2πr=2×2×π×20π=80m