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(II) A simple pendulum has a length of 1.2 m mass 0.8 kg. It is released at 90° to the vertical. What is the speed of the bob and the tension in the string when (a) the string is vertical, and (b) when the string is at 370 to the vertical? and a bob of
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Answer #1

Applying conservation of mechanical energy.

Decrease in gravitational potential energy = increase in kinetic energy.

mo Bob 孑 29人 -Tension 27 VE

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