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Introductory Physics Homework Help
How to Calculate Speed of Head of Driver After Collision?
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[QUOTE="kuruman, post: 6824882, member: 192687"] At this point you figured out that you needed one more equation and you invoked this vi1 +v1f = V2i +v2f without explanation or justification. It is a bogus equation. The fact is that v1f is known. Read the problem carefully to see what it is. Put it in the momentum conservation equation and solve for v2f. [/QUOTE]
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How to Calculate Speed of Head of Driver After Collision?
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