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secondary 3 | E Maths
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secondary 3 chevron_right E Maths chevron_right Singapore

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Date Posted: 5 years ago
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Eric Nicholas K
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5997 answers (Tutor Details)
1st
These are the two timings for which the ball is exactly 10 m above the ground.

If they ask for the time interval for which the ball is above 10 m, just subtract the two numbers.