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Q. A mass of 100g is attached at the other end of a string wrapped around a 25cm diameter solid disk. It descended 2cm after it was released from rest. Determine the time of fall.

Q. A 1110-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam. Using the data , find (a) the magnitude of the tension in the wire and the magnitudes of the (b) horizontal and (c) vertical components of the force that the wall exerts on the left end of the beam.

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