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givi [52]
2 years ago
11

What is its time interval between the release of the ball and the time it reaches its maximum height? Its initial vertical speed

is 9 m/s and the acceleration of gravity is 9.8 m/s 2 . Neglect air resistance.
Physics
1 answer:
BigorU [14]2 years ago
3 0

Answer:

The time to reach max height is    h = 1/2 g t^2  

The time to fall is the same as that for an equivalent rise

m g h = 1/2 m v^2       KE vs PE

Here:   (Vf - VI) / g = t = -9  / -9.8 = .92 s

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What’s the acceleration if the average velocity is 3.5 and the time is 8.7
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. Two identical vehicles traveling at the same speed are made to collide with barriers in an insurance company collision test. T
Serggg [28]

Answer:

F₁ / F₂ = 10

therefore the first out is 10 times greater than the second barrier

Explanation:

For this exercise let's use the relationship between momentum and momentum.

         I = F t = Δp

in this case the final velocity is zero

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in order to answer the question we must assume that the two vehicles have the same mass and speed

concrete barrier

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let's look for the relationship of the forces

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5 0
3 years ago
Which statements describe a fully charged capacitor? Check all that apply.
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So we have a capacitor that has some charge on it, and therefore some
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-- Electric potential energy is stored.
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</span>
4 0
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Read 2 more answers
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