If the final speed of an object as is strikes the ground is 77 m/s and it was in the air for 6.5 seconds. What was the initial downward speed of the object?

Question

Physics

Turner Compton

16 April, 07:14

If the final speed of an object as is strikes the ground is 77 m/s and it was in the air for 6.5 seconds. What was the initial downward speed of the object?

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Answers (1)

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Kassandra Schaefer · Answer 1

The answer to your question is: 13.2 m/s

Explanation:

final speed (fs) = 77 m/s

t = 6.5 s

gravity (g) = 9.81 m/s2

initial speed (is) = ?

Formula

fs = is + gt from this equation we clear "is" = fs - gt

Substitution is = 77 - (9,81) (6.5)

Process is = 77 - 63.8

is = 13.2 m/s