Round 9: Tossup 19

A form of this quantity is the associated Noether (“NURR-turr”) current when the Lagrangian does not depend on a given coordinate. This quantity’s “conjugate” form equals the derivative of the Lagrangian with respect to generalized velocity and is related to q and q-dot in Hamilton’s equations. Position (10[1])and the generalized form of this quantity are the usual coordinates of phase space. (10[1])The square of this quantity’s “linear” form divided by two times mass equals kinetic (-5[2])energy. (10[1]-5[1])In the general statement of Newton’s third (-5[1])law, force equals the time (10[1])derivative of this quantity, which is conserved in all collisions. (10[1])For 10 points, name this quantity equal to mass times velocity. (10[1])■END■ (10[2])

ANSWER: momentum [or momenta; accept generalized momentum or conjugate momenta; accept linear momentum; prompt on p; reject “angular momentum”]
<Editors, Physics> | Packet K
= Average correct buzz position

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