25.0 Bird cm Hinge
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A 500.0 g bird is flying
horizontally at 2.25 m/s, not
paying much attention, when it suddenly
flies into a stationary vertical
bar, hitting it 25.0 cm below the top
(Fig. ). The bar is uniform,
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 afterward (but
soon recovers to fly happily away).
What is the
and (b) just as it reaches the ground?
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