A railroad car of ass M moving at a speed vV, collides and couples with two coupled railroad cars, each of the same mass M and moving in the same direction at a speed vz. (a) What is the speed v, of the three coupled cars after the collision in terms of v, and v,? (b) How much kinetic energy is lost in the collision? Answer in terms of M, v, and v2 KE, - KE,-
A railroad car of ass M moving at a speed vV, collides and couples with two coupled railroad cars, each of the same mass M and moving in the same direction at a speed vz. (a) What is the speed v, of the three coupled cars after the collision in terms of v, and v,? (b) How much kinetic energy is lost in the collision? Answer in terms of M, v, and v2 KE, - KE,-
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Transcribed Image Text:A railroad car of mass M moving at a speed v, collides and couples with two coupled railroad cars, each of the same mass M and
moving in the same direction at a speed v2
(a) What is the speed v, of the three coupled cars after the collision in terms of v, and v?
(b) How much kinetic energy is lost in the collision? Answer in terms of M, v, and vz.
KE, - KE, =
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