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qz6t - before v r V V after 1 T V:D/I ~,~D.J.J?7'P~ C ~M...

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Physics 14 ~ Quiz 6 - Fall 2008t SHOW ALL YOUR WORK AND REASONING 1. Two carts collide and bounce, as shown below. Calculate the final speed of the 6 kg mass, given the speeds and direction of movement below. Iv,,~ ;~/J Iv.: 1k:J )) I V1~:~ J. I v:~? I . --+ (( . ?~ ~ 'P* VY) I V,,, T vY"Iz. . V'J.A ~ VV\, V(. .fl --\' VVl1 V2~ . ~~ "- (2') (5') -\ (8')(\') ::0 - (2)( '5) <\- '6 (V zl; [04?-==-\,? ~ -(,+ {JV r 2~ 2 L{ 2 Lf- ::: ~ v2-~ ~ ~ :=- ~ = ~ 2a. You and a friend are standing (not moving) on an icy surface. You push away from your friend. (You have less mass than your friend.) Draw a picture showing you and your friend just before and just after you push apart. On the diagram, draw velocity vectors to show whether you or your friend (if either) move ~ just after your push.
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Unformatted text preview: before v r-/ V V ... after 1 T V:::D /I ~ ,~D .J.J---?7 'P~() C ~M . 4-+-~ 2b. Did you or your friend have a greater acceleratiori during the push? Explain. YoV\-fu. <)~ W\[t}5 ~q~ ~-:= ~ ~c~ 4W S'dIVWl ~ O~ OIl ~~ ~ ~ ~ _ cD 2c. Did you or your friend have the greatest momentum after the push? Explain. SAtfl ~-. ~ ~ ~~ VVUf)t-k ~-. / S;o ~~ ~0 K-~~~S'c~~ ~Off. ~~f' 3. Two carts collide and do not stick together, as shown below. The momentum arrows are shown. Which of the sets of momentum arrows shown below (A, 8, C) could occur m I ~ Or (~~.fvW ~~) BJ .-t ~ oK~ c-. + ~ N"0t 0 k' C tvc \IltWe-h ~ ~<5~t)...
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