ICSE Class 10 Answered
Pendulum Bob is pulled to one side until its centre of gravity is raised by 20 CM above the mean position calculate the speed of Bob as it passes through the mean position
Asked by Samrat | 29 Jun, 2018, 10:18: PM
Expert Answer
when the bob raised to 20 cm vertically high from the mean position, it gains potential energy.
The gained potential energy is fully converted into kinetic energy when it is passing through mean position.
Let h be the height raised and v is the speed at mean position.
then we have, m×g×h = (1/2)×m×v2 , or v =
Answered by Thiyagarajan K | 30 Jun, 2018, 03:56: PM
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