Eric Nicholas K's answer to .'s Secondary 3 E Maths Singapore question.
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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.
If they ask for the time interval for which the ball is above 10 m, just subtract the two numbers.
Date Posted:
5 years ago
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