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Question

A particle moves in a circle of radius 20 cm. Its linear speed is given by v = 2t, where t is second and v in metre/second. Find the radial and tangential acceleration at t = 3 s.


A
ar=1.8m/s2
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B

ar=180m/s2

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C

at=6m/s2

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D
at=2m/s2
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