Straight Line Motion Questions Help

AI Thread Summary
The discussion revolves around clarifying answers to straight line motion homework questions. Participants request clearer transcription of the questions due to illegible thumbnails and share their answers, with some agreement on specific questions. There is a focus on question 9, where a hint about vector deduction is provided, suggesting an alternative approach to solving the problem. Participants also discuss their methods, including using the triangle and parallelogram methods for calculations. The conversation emphasizes collaboration in resolving misunderstandings related to the homework.
man0005
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Homework Statement


The questions and my answers are all on the attachment below
s

Homework Equations





The Attempt at a Solution

 

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The thumbnails are barely legible. Please transcribe the specific questions for which you need help and your attempts at answering them.
 
Man005, perhaps you could start by explaining your thought process for question 10.
 
um if you could check 9 and then through from 12-19 would be good
7 should be B
8 should be A
and 9 should be C
forgot to check that

um for 10? just made a triangle and found hypotenuse?
 
man0005 said:
7 should be B
8 should be A
and 9 should be C

agreeded for 7 and 8, think again about 9..

hint - if you deduct a vector, it's the same as adding one of the opposite direction
 
hmm i did the same thing as the others (use the parallelogram method) and i got c
cant see what I've done wrong :S unless the 2 affects the method in some way
 

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