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M2 collisions question

Edexcel January 2013, question 7. a)

Basically just a normal collision question, but in the mark scheme for part (a) it says "(1-3e) is A0", I don't get why. I checked Arsey's model answers and he wrote (1-3e) so are we both wrong or am I misinterpreting it?
Original post by 雷尼克
Edexcel January 2013, question 7. a)

Basically just a normal collision question, but in the mark scheme for part (a) it says "(1-3e) is A0", I don't get why. I checked Arsey's model answers and he wrote (1-3e) so are we both wrong or am I misinterpreting it?


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Are you on commission? :smile:
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雷尼克
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Original post by ghostwalker
Both attachments require a Google account login.

Are you on commission? :smile:


damn I thought it was just the links to the physicsandmaths tutor pages :/
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Zacken
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Original post by 雷尼克
damn I thought it was just the links to the physicsandmaths tutor pages :/


It's given that the direction of A is reversed, so your velocity needs the correct sign. Since the question is asking for speed, it needs to be the magntiude. You'll need to put up your diagram and working so I can see if you've gotten the directions correct.
(edited 8 years ago)

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