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# Tricky M3 Question.. Need help!!!! watch

1. if a is proportional does that means a=k(t+to)^-3

and hopefully the constant cancels?

I follow that through and get v and then intergrate to get x but unsure about the constant from x?

+ i'm unsure about the question..

Any solutions would be great! Thanks!

That's the question from the edexcel M3 book Thanks !
2. btw, sorry if it's a little dark it's the best picture I could take.
3. (Original post by SamEmery)
if a is proportional does that means a=k(t+to)^-3
Yes.

I follow that through and get v and then intergrate to get x but unsure about the constant from x?
Doesn't matter, it's a definite integral between "t" and "0" since you're interested in how far it's travelled

+ i'm unsure about the question..

Any solutions would be great! Thanks!
It does work out. I'm not going to do a solution for you. If you want to post any intermediate results, or have as specific place where you're stuck....

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