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M1 Projectiles question

Hi
Im doing an M1 paper (http://www.mei.org.uk/files/papers/m106ja_97d65s.pdf)
Im on question 8) iv
i worked through 8 parts i to iii fine and got the right answer. I just dont understand what part 4 is asking, and dont really know how to got about this part. Would anyone mind explaining how to go about this, and what exactly this question is asking
Thanks
Reply 1
Original post by starwarsjedi123
Hi
Im doing an M1 paper (http://www.mei.org.uk/files/papers/m106ja_97d65s.pdf)
Im on question 8) iv
i worked through 8 parts i to iii fine and got the right answer. I just dont understand what part 4 is asking, and dont really know how to got about this part. Would anyone mind explaining how to go about this, and what exactly this question is asking
Thanks


take the equation of the trajectory found in iii
you now know the y is 6, you can find x
thanks for your reply s.
i understand the maths involved. the problem is i dont understand WHY i am doing this. i simply cannot understand why substituting y=6 into the equation gives me the new position
anyone care to explain? thanks

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