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Korolek [52]
3 years ago
13

If a person is walking at 1.2 m/s and 60 seconds later the person is running at 10 m/s, what was the acceleration rate?​

Physics
1 answer:
Marina CMI [18]3 years ago
6 0
The acceleration rate would be .14667 m/s^2
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A ball is dropped from a building taking 3sec to fall to the ground. Calculate:
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Answer:

Vf = 29.4 m/s

h = 44.1 m

Explanation:

Data:

  • Initial Velocity (Vo) = 0 m/s
  • Gravity (g) = 9.8 m/s²
  • Time (t) = 3 s
  • Final Velocity (Vf) = ?
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==================================================================

Final Velocity

Use formula:

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Replace:

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Multiply:

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==================================================================

Height

Use formula:

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Replace:

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Multiply time squared:

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Simplify the s², and multiply in the numerator:

  • \boxed{h=\frac{88.2m}{2}}

It divides:

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What is the velocity when falling to the ground?

The final velocity is <u>29.4 meters per seconds.</u>

How high is the building?

The height of the building is <u>44.1 meters.</u>

3 0
3 years ago
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