Asked by Oxy
A toy locomotive of mass 420g moving at 30cm s^-1 south collides with a carriage of mass 200g moving at 30cm s^-1 north. If they become couple together, what is their common velocity after the collision?
Answers
Answered by
Steve
just preserve momentum:
(420)(-30) + (200)(30) = (420+200)(v)
v = -10.65
(420)(-30) + (200)(30) = (420+200)(v)
v = -10.65
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