A particle of mass 10 g moves along a circle of radius 6.4 cm with a constant tangential acceleration. What is the magnitude of this acceleration if the kinetic enegy of the particle becomes equal to 8 $ \times $ 10$-$4 J by the end of the second revoluation after the beginning of the motion ?
0.18 m/s2
0.2 m/s2
0.1 m/s2
0.15 m/s2
Solution
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