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secondary 3 | A Maths
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secondary 3 A Maths Singapore

Can help with d and e thank you, urgent

Date Posted: 3 years ago

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(d) draw a horizontal line at value 21, as this shows when the object is 21m above the ground, the length of the time will be the time difference between the intersection of the graph (e.g. time when graphs intersect 2nd time MINUS time when graphs intersect 1st time)

(e) from your graphs, find the maximum h, substitute this value into the quadratic equation, and solve the equation, the value t that you obtain would be T

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