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Tangential acceleration on a bob of a simple pendulum of mass 100 grams when its amplitude is 20  is

a
0.017 m/sec2
b
1.7 m/sec2
c
0.348 m/sec2
d
0.034 m/sec2

detailed solution

Correct option is C

tangential acceleration =aT=gsinθaT=gθ     since  sinθ≃θaT=10×2π180     θ=2o=2π180 radaT=2×3.1418=0.348 m/sec2

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