A ball falls vertically after being dropped. The ball falls a distance d metres in a time of t seconds. d is directly proportional to the square of t. The ball falls 20 metres in a time of 2 seconds. (a) Find a formula for d in terms of t.

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A ball falls vertically after being dropped.
The ball falls a distance d metres in a time of t seconds.
d is directly proportional to the square of t.
The ball falls 20 metres in a time of 2 seconds.
(a) Find a formula for d in terms of t.
Transcribed Image Text:A ball falls vertically after being dropped. The ball falls a distance d metres in a time of t seconds. d is directly proportional to the square of t. The ball falls 20 metres in a time of 2 seconds. (a) Find a formula for d in terms of t.
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