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Q. A pendulum is 1.20 metres long. What is the speed of the bob when it passes through its equalibrium position if it is pulled aside until it makes an angle of 25 degrees to the vertical?

Q. A spring is hung from the ceiling. A 0.359-kg block is then attached to the free end of the spring. When released from rest, the block drops 0.206 m before momentarily coming to rest. What is the spring constant of the spring? Find the angular frequency of the block's vibrations?

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Category:- Physics
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