Q. The distance between two telephone poles is 50.0 m. When a 1.00 kg bird lands on the telephone wire mid-way between the poles, the wire sags 0.200 m. Draw a free-body diagram of the wire and bird system. How much tension does the bird produce in the wire? Ignore the weight of the wire.
Q. Wheel of radius 0.20 m is mounted on a frictionless horizontal axis. A massless cord wrapped around the wheel is attaches to a 2.0 kg block that slides on a horizontal frictionless surface. If a horizontal force of magnitude P= 5.0 N is applied to the block as shown and the resulting acceleration of the block is measured to be 0.75m/s^2, what is the rotational inertia of the wheel.