What is their common velocity after the collision

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An object of mass 2 kg is moving east at 5 m/sec and collides with an object of 1 kg mass moving west at 4 m/sec. The objects stick together.

a. What is their common velocity after the collision (direction and magnitude)? (Which conservation law is used here?)

b. How much kinetic energy is lost in the collision?

c. Is this collision elastic?

Reference no: EM13667244

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