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Simple pendulum of length 10cm and of mass 0.2kg is pulled to one side through an angle $45^{0}$ and released. The maximum velocity is

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1.4ms−1

1.40.29ms−1

2ms−1

1.8ms−1

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detailed solution

Correct option is B

V=2gl(1−cosθ) =2×9.8×0.1(1−cos450) =1.96[1−12] =1.41−22 =1.41−1.4142 =1.41−0.707 =1.40.29

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Simple pendulum of length 10cm and of mass 0.2kg is pulled to one side through an angle 450 and released. The maximum velocity is

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Simple pendulum of length 10cm and of mass 0.2kg is pulled to one side through an angle $45^{0}$ and released. The maximum velocity is