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Unformatted text preview: only 90% the mass of the cue ball. You fire the cue ball at the eight ball hoping to make the eight ball travel at 3.50m/s at a 45.0 angle to the initial direction of the cue ball. Find (a)the speed you need to launch the cue ball, (b)the angle the cue ball makes with its original direction, and (c)the speed of the cue ball after the collision. You may assume the collision is elastic. 4. A 5.00g bullet fired horizontally at a 1.00kg wooden block with a speed of 450m/s goes quickly and completely through the block. The block is attached to the ceiling with a long string and as a result of the collision, swings upward a vertical distance of 5.00mm. Find (a)the initial kinetic energy of the bullet, (b)the speed of the block just after the bullet leaves, (c)the speed of the bullet as it leaves the block, and (d)the final kinetic energy just after the collision. (e)Is this an elastic collision? 10.0cm 4.00m/s 30...
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This note was uploaded on 03/11/2012 for the course PHYSICS 204A taught by Professor Kagan during the Fall '09 term at CSU Chico.
- Fall '09