How long does it take a ball to fall 75.0m? (g = -9.81 m/s²) O 15.3 m/s² O 3.91 s O 15.3 s O 3.90 m/s²

Mark Lindell asked Feb 24, 2023

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5 votes

How long does it take a ball to fall 75.0m? (g = -9.81 m/s²)

O 15.3 m/s²
O 3.91 s
O 15.3 s
O 3.90 m/s²

Mark Lindell asked Feb 24, 2023

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18 votes

Answer:

3.91 s

Step-by-step explanation:

d = -75

a = -9.81

d = 1/2 at^2

-75 = 1/2 ( -9.81) (t^2)

75 = 1/2 ( 9.81) t^2 shows t = 3.91 s

AzP answered Mar 3, 2023

by AzP

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