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3 years ago

An object is accelerating if there is a change in speed and/ or which factor A.Time B.Position C.Direction D.Displacment

Physics

2 answers:

astra-53 [7]3 years ago

5 0

"Acceleration" is a change in speed, or direction of motion, or both.

enot [183]3 years ago

5 0

hey there!!!

I believe the answer is C). Direction. Since when something in speed changes, it can cause the direction to change or position but I would mainly say if there is a change in spped then the dircetion will somehow or somewhat change also.

Hope that helps!!! :)

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devlian [24]

Your equation for the height of the stone at any time is h(t) = -16t2 + 128t + 32 .

From your equation, we can tell that you're defining the upward direction as
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Anyway, When the stone splashes into the water, h(t) = 0 .

-16t² + 128t + 32 = 0

Divide each side by -16 :

t² - 8t - 2 = 0

I don't see any easy way to factor the expression on the left,
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t = 4 plus and minus √18 .

t = +8.24 seconds
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Mathematically, both numbers are valid solutions.But when you apply
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So  t = 8.24 seconds.

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GalinKa [24]

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