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Introductory Physics Homework Help
Initial velocity in an inelastic collision
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[QUOTE="ZapperZ, post: 6081834, member: 6230"] There are two issues with your setup here: 1. For an inelastic collision, KE is not conserved. So your conservation of KE equation is incorrect. 2. You have introduced one unnecessary variable. When they both stuck together after the collision, the TOTAL MASS of both vehicles move with the SAME VELOCITY. Instead, you introduced two different symbols for two different velocities for each vehicle. The only ambiguity that I have in the problem is the statement "Assume that the driver of the moving car made no attempt to brake..." Does this mean that the driver doesn't break even after the collision? If this is true, then his wheels do not slide, and his vehicle does not contribute to the frictional force. Zz. [/QUOTE]
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Initial velocity in an inelastic collision
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