Homework-5 (due on 2.21.14)

1.The distance between two telephone pole is 50m. When a 1kg bird lands on the telephone wire midway between the poles the wire sags 0.2m. Draw the free body diagram of the Bird. How much tension does the bird produce in the wire. 2.A hocky puck struck by a hocky stick in given an initial speed of 20m/s on a frozen pond. The puck remains on the ice and slides 1.2x102m slowing down until it comes to rest. Determine the coefficient of kinetic friction between the puck and the ice.


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