Edexcel Gcse Mathematics (Linear) - Bounds Page 3
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2. A ball is thrown vertically upwards with a speed V metres per second.
The height, H metres, to which it rises is given by
2
V
=
H
2
g
2
where g m/s
is the acceleration due to gravity.
V = 24.4 correct to 3 significant figures.
g = 9.8 correct to 2 significant figures.
(i) Write down the lower bound of g.
.....................................
(ii) Calculate the upper bound of H.
Give your answer correct to 3 significant figures.
Q2
.....................................
(Total 3 marks)
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