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secondary 4 | A Maths

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How to do part (d)? The ans is 11.7m

The approach is to substitute a=0 for the equation in (c) to get a t value that corresponds to the displacement when velocity is maximum. However, the trick is that they are asking for *distance*, so you have to find the displacement when the point came to rest, then add it to the displacement when velocity is maximum to get the total distance traveled.

*Do note that if displacements are negative, the distance is just the sum of the value still!

Imagine a parabolic path of a ball thrown in the air, distance traveled is the sum of upward and downward motion!

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