You drop a ball from a height of 81 feet. The function h=-16x^2+81 represents the height h (in feet) of the ball after x seconds. How long does it take the ball to hit the ground?

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Sqd asked Oct 2, 2023

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You drop a ball from a height of 81 feet. The function h=-16x^2+81 represents the height h (in feet) of the ball after x seconds. How long does it take the ball to hit the ground?

Mathematics
high-school

Sqd asked Oct 2, 2023

by Sqd

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25 votes

Answer:

2.25 seconds.

Explanation:

You drop a ball from a height of 81 feet. The function h=-16x^2+81 represents the-example-1

Exacerbatedexpert answered Oct 5, 2023

by Exacerbatedexpert

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