# Two cars of equal mass collide inelastically and stick together after the collision. before the collision, their speeds are v1 and v2 . what is the speed of the two-car system after the collision?

a) v1+v2

b) v1-v2

c) v2-v1

d)(v1v2)^(1/2)

e) (1/2)(v1+v2)

f)(v1+v2)^(1/2)

g)the answer depends on the directions in which the cars were moving before the collision.

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