Practice-Quiz6

Practice-Quiz6 - Physics 7B Practice Quiz 6 DL Section...

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Physics 7B Practice Quiz 6 First two letters of last name: DL Section Number ____________ Name (last, first) ____________________________ Student ID _______________________ I certify by my signature that I will abide by the code of academic conduct of the University of California. Signature No books or notes. Calculators OK. Show all your work below. Answers alone do not receive credit! You are skating on ice at a rate of 2 m/s, and come up behind your partner, who is going in the same direction at 1 m/s, taking her by surprise, wrapping your arms around her so that the two of you skate together in the same direction. Assume there is no friction with the ice. a. (1.5 pts) Is this an inelastic or elastic collision? If inelastic, explain what happens to the kinetic energy. b. (1.5 pts) Is linear momentum conserved in the collision? Why or why not? c. (1.5 pts) At what speed do the two of you skate after the collision, assuming you have the same mass?
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Practice-Quiz6 - Physics 7B Practice Quiz 6 DL Section...

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