How to work out upper and lower bounds 5 - GCSE question grade 7+

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This video is all about how to work out upper and lower bounds and forms part of the playlist of the same name.

The question is aimed at around grade 7+ GCSE maths:
In the formula v^2=u^2+2as (vsquared = usquared + 2as)
v = 48.35 correct to 2 decimal places
a = 9.81 correct to 2 decimal places
s = 45.2 correct to 1 decimal place

Calculate the upper bound for u. Give your answer to 3 decimal places.


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