Kinetic Energy in an Inelastic Collision
Two identical spheres, each of mass m, are moving along the same line with initial velocities of v and -v/2, respectively, when they collide. If the coefficient of restitution for the collision is 0.6, what is the ratio of the total kinetic energy of the two-sphere system after the collision to the total kinetic energy before the collision?
A
0.76
B
0.36
C
0.64
D
0.42
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