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A particle moves in a circle of radius 25 cm at two revolutions per second. The acceleration of the particle in m/s2 is(a) π2(b) 8π2(c) 4π2(d) 2π2 |
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Answer» Correct Option (c) 4π2 Explanation: Since n = 2 , ω = 2π x 2 = 4π rad/s2 So acceleration = ω2r = (4π)2 x 25/100 m/s2 = 4π2 |
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