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A ball rolls off a cliff and falls for 4.5 s. What is the final vertical velocity of the ball? (Answer must be negative!!!)

1 Answer

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Answer:

-199 m/s

Step-by-step explanation:

Ignoring the horizontal velocity, the vertical velocity =

a *t a = -9.81 m/s^2

-9.81 ( 4.5^2) = - 199 m/s

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