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In: Physics

A uniform 1.2kg square plexiglas window, 1.750m on a side hangs vertically from a frictionless hinge...

A uniform 1.2kg square plexiglas window, 1.750m on a side hangs vertically from a frictionless hinge along its upper edge. A 1.10kg raven flying horizontally at 6.60 m/s collides with the window 1.25m from the hinge and bounces back at 3.80m/s in the opposite direction.

a)

What is the angular momentum of the raven relative to the hinge before and after the collision?

b)

What is the angular speed of the window just after the collision?

c)

Why is angular momentum conserved and not linear momentum?

d)

Why was the raven so panicked it flew into the window in the first place?

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