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Homework 10 problem 10

0 votes
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A 0.006 00-kg bullet traveling horizontally with a speed of 1.00 image 103 m/s enters an 16.4-kg door, imbedding itself 9.30 cm from the side opposite the hinges as in the figure below. The 1.00-m wide door is free to swing on its frictionless hinges.

image

 

asked Oct 28, 2013 in Intro College Physics by anonymous

2 Answers

0 votes
This problem was discussed in lectures. Please see the lecture notes L1002.

We consider this problem being an inelastic rotational collision so the angular momentum will be conserved. Find the L of the bullet which equals the L after the collision. Then you would find the angular velocity and thus the rotational kinetic energy of the door-bullet combo after collision. Using energy conservation, you can figure others.
answered Oct 28, 2013 by PhysicsDude (21,750 points)
0 votes

I hope that my non-calculated answers are correctly explained - be sure to look into definitions just in case.

answered Oct 28, 2013 by Underscore (140 points)
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