10_24_Momentum_Energycopy

# 10_24_Momentum_Energycopy - v B,i i 1 2 4 5 v B,i 3 1 5 v...

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Physics 211 10/24 Homework Handout Due Friday 10/26 Fall 2001 1) Block B slides to the left across a frictionless surface with speed v = 15 m/s and collides with block A , initially at rest. The mass of block B is m B = 2 kg and the mass of A is m A = 3 kg. a) Which of the following final velocities below conserve momentum for the two block system? Show your work for each case. Final Velocities c Bl oc k A Bl oc k B i 1 0 2 / 3 v B ,i 0 i 6 2 / 5 v B ,i 6 2 / 5 v B,i i 5 1 / 3 v B ,i 7.5 1 / 2

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Unformatted text preview: v B,i i 1 2 4 / 5 v B ,i 3 1 / 5 v B,i v 2 0 4 / 3 v B ,i 15 v B,i b) Which of the above, if any, are elastic collisions? Show your work for each case and explain. v A,i m A = 2m B m B = 3m c) Which of the above, if any, are completely inelastic collisions? Show your work and explain. d) Which of the above, if any, could not happen under ordinary circumstances? Show your work and explain. 28...
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10_24_Momentum_Energycopy - v B,i i 1 2 4 5 v B,i 3 1 5 v...

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