A 1 m long pedulum with a 2kg mass is pulled back 0.1m and, Ask an Expert

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Q. A 1 m long pedulum with a 2kg mass is pulled back 0.1m and after that released, so that it swings back and forth. How did they solve T= 2.007 seconds?

Q. At time a grinding wheel has an angular velocity of 27. It has a constant angular acceleration of 33 until a circuit breaker trips at time = 1.7. From then on, the wheel turns through an angle of 433 as it coasts to a stop at constant angular deceleration.

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