A 12 g bullet travelling at 420 ms is fired into the middle, Ask an Expert

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A 12 g bullet travelling at 420 m/s is fired into the middle of an unlatched 32.0 kg door. The door is hinged on one end, is 1.20m wide and has I = 1/3 Md^2. The bullet hits the middle of the door.

A) What is the angular speed of the door just after the bullet is embedded in it?

B) Calculate whether the kinetic energy is conserved.

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Category:- Physics
Reference No.:- M91052414

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