Mathematics, 12.03.2021 02:00 Daseanjones3063

A rock is projected directly upward from ground level. After t seconds, its height is given by: f(t) = -16t? + 64t + 80.
a
a)
After how many seconds will it reach a height of 144 ft?
b)
When will the rock return to the ground?

Answers: 1

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A rock is projected directly upward from ground level. After t seconds, its height is given by: f(t) = -16t? + 64t + 80. a a) After how many seconds will it reach a height of 144 ft? b) When will the rock return to the ground?

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Another question on Mathematics

A rock is projected directly upward from ground level. After t seconds, its height is given by: f(t) = -16t? + 64t + 80.
a
a)
After how many seconds will it reach a height of 144 ft?
b)
When will the rock return to the ground?