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# M1 Question Watch

1. I'm stuck on question 5 part iii
https://211c25b87002c8b34761c926d793...20M1%20OCR.pdf

I've done the rest of the first 2 parts of the question and I'm sure I need to do some kind of simultaneous equations to figure out at when they are the same height but not sure where to go from here
2. (Original post by JW22)
I'm stuck on question 5 part iii
https://211c25b87002c8b34761c926d793...20M1%20OCR.pdf

I've done the rest of the first 2 parts of the question and I'm sure I need to do some kind of simultaneous equations to figure out at when they are the same height but not sure where to go from here
Quickly reading through the question, I would suggest using s=ut+0.5at^2 to write equations of motion for both particles. Equate them to get a value of t, then sub that value of t in to v=u+at. you should get a negative value for one particle and a positive value for the other and they should be equal and opposite. Hope this is helpful

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