A ball of mass 0.5kg moving at 10ms-1 collides with another ball of equal mass at rest. If the two balls move off together after the impact, calculate their common velocity.
-
A.
0.2ms-1 -
B.
0.5ms-1 -
C.
5.0ms-1 -
D.
10.0ms-1 -
E.
20.0ms-1
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