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?

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

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no simpler subs form complex ones. synthesise = make