A 500.0 g bird is flying horizontally at 2.25 m/s, not paying much at- tention, when it suddenly flies into a stationary vertical bar, hitting it two-thirds of the way up from the bottom. The bar is uniform and very thin, is 0.750 m long, has a mass of 1.50 kg, and is hinged at its base. The collision stuns the bird so that it just drops to the ground afterwards (but soon recovers and flies away). a) Using conservation of total angular momentum, determine the angular velocity of the bar just after it is hit by the bird. b) What numerical fraction of the bird's initial kinetic energy is converted to other forms of energy during the collision?
A 500.0 g bird is flying horizontally at 2.25 m/s, not paying much at- tention, when it suddenly flies into a stationary vertical bar, hitting it two-thirds of the way up from the bottom. The bar is uniform and very thin, is 0.750 m long, has a mass of 1.50 kg, and is hinged at its base. The collision stuns the bird so that it just drops to the ground afterwards (but soon recovers and flies away). a) Using conservation of total angular momentum, determine the angular velocity of the bar just after it is hit by the bird. b) What numerical fraction of the bird's initial kinetic energy is converted to other forms of energy during the collision?
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