How far will a freely falling object fall from rest in six seconds?

2 answers:

5 0

Tabulate, then find the proper equation, then solve.

vi=0
vf=?
t=6s
a=g=9.8m/s²

vf=vi+at
vf=gt
vf= (find this yourself)

navik [9.2K]4 years ago

4 0

Here are two ways to do it:

<u>Way #1:</u>
-- You know that gravity accelerates things that are falling freely, adding 9.8 m/s to their speed every second.

-- After 6 seconds, an object that fell from rest winds up falling at (9.8 x 6) = 58.8m/s.

-- During that time, its average speed was 1/2(0 + 58.8) = 29.4 m/s .

-- In 6 seconds, at an average speed of 29.4 m/s, it covers (29.4 x 6) = <em>176.4meters</em>.

<u>Way #2:</u>
This way only works if you remember the formula for the distance covered during uniform acceleration.

D = 1/2 (acceleration) (time)²

Acceleration = gravity = 9.8 m/s²
Time = 6 seconds

D = 1/2 (9.8) (6)² = <em>176.4 meters</em>.

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ozzi

Answer:

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4 years ago

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Shkiper50 [21]

Answer:

Option D. is correct.

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3 years ago

A rope pulls a 20 kg box up. If the tension in the rope is 275 N, what is the acceleration of the box?

Nana76 [90]

Answer:

<h3>The answer is 13.75 m/s²</h3>

Explanation:

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