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Unformatted text preview: of the momenta before and after the collision. Essentially this boils down to resolving the velocity vectors into components and applying conservation of momentum separately to each direction. 1. Strike 1. A hockey puck of mass m = 2 kg slides due East at v 1 = 15 m/s. It bumps into a stationary brick of mass M = 5 kg. Afterwards, the puck slides away to the northeast with velocity v 2 = 8 m/s at θ = 10° degrees, and the brick slides to the southeast at V 2 at φ = 11 degrees, What is the final speed of the brick? Is this an elastic collision (does it conserve kinetic energy)? r p sys ( t 1 ) = r p sys ( t 2 ) v 1 m M Before v 2 V 2 θ φ After...
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 Fall '09
 LIND
 Kinetic Energy, Mass, Momentum, Special Relativity, v2

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