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gcombina
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Homework Statement
Two objects of equal mass traveling toward each other with equal speeds undergo a head on collision. Which one of the following statements concerning their velocities after the collision is necessarily true?
(a) They will exchange velocities. (d) Their velocities will be zero.
(b) Their velocities will be reduced. (e) Their velocities may be zero.
(c) Their velocities will be unchanged.
Homework Equations
Law of linear momentum conservation
The Attempt at a Solution
*This is a one system, no external forces
*Linear momentum conservation applies
(a) I don't know, can you help me on this one?
(b) Yes
(c) mmmm I don't know
(d) No
(e) No, the velocities were not zero at the beginning so they won't be zero after the collision either. Mass and velocity will be conserved