HWProblemSet8

HWProblemSet8 - before the collision. Indicate values and...

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Physics 211 Spring 2012 Syracuse University Homework Problem Set 8 p.1 Physics 211 Problem Set 8 Due Fri, 03/23/12 Last Name:___________________________________ First Name _______________ Workshop time or section:___________________TA name or Room # ___________ Please submit your homework on this sheet. If you need more space than is available, please attach additional sheets of paper. 1. A railroad car of mass 25000 kg is moving with a speed of 4 m/s. It collides and couples with three other coupled railroad cars, each of the same mass as the single car and moving in the same direction with an initial speed of 2 m/s. (a) What is the speed of four car after the collision? (b) How much energy is lost in the collision? Sketch the railroad cars
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Unformatted text preview: before the collision. Indicate values and directions of their velocities. Sketch the railroad cars after the collision. Indicate direction of their velocity. (a) (b) Physics 211 Spring 2012 Syracuse University Homework Problem Set 8 p.2 2. A 0.0052kg bullet moving at 672 m/s strikes a 0.7kg wooden block at rest on a frictionless surface. The bullet emerges with its speed reduced to 428 m/s. Find the resulting speed of the block. Sketch the bullet and the block before the collision. Indicate values and directions of their velocities. Sketch the bullet and the block after the collision. Indicate values (if known) and directions of their velocities. Solve by using the total momentum conservation....
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HWProblemSet8 - before the collision. Indicate values and...

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