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# Car round track question Tweet

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1. Car round track question
Question 5a

Unfortunately book doesn't give mark scheme, just answer. They get 14.4 m/s, I get 9.9 m/s. Anyone help.

My method resolve verticall and horizontally, express one as a ratio of other, to get tan theta involved ... and I get 9.9 m/s.
2. Re: Car round track question
(Original post by Charries)
Question 5a

Unfortunately book doesn't give mark scheme, just answer. They get 14.4 m/s, I get 9.9 m/s. Anyone help.

My method resolve verticall and horizontally, express one as a ratio of other, to get tan theta involved ... and I get 9.9 m/s.
I get 14.8 m/s to 3 sig.fig., with your methodology, using g=9.8 m/s/s.
3. Re: Car round track question
Yes - wan't using tan=3/4 - thank you