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andreev551 [17]
2 years ago
8

An object falls from the top of a building that is 25 m high. Air resistance is negligible.

Physics
1 answer:
Vlada [557]2 years ago
5 0

The velocity of the object s calculated as 22.1 m/s.

<h3>What is the speed of the object?</h3>

Given that we can write that;

v^2 = u^2 + 2gh

Now u = 0 m/s because the object was dropped from a height

v^2 = 2gh

v = √2 * 9.8 * 25

v = 22.1 m/s

Learn more about velocity:brainly.com/question/18084516

#SPJ1

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3 years ago
What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 se
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Answer:

Acceleration, a=\dfrac{1}{8}(-i+9j)\ m/s^2

Explanation:

Initial velocity of a particle in vector form, u = (-5i - 2j) m/s

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a=\dfrac{v-u}{t}

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or

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Answer:

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B.

80 mmHg

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Hope its the answer you are finding and hope it helps....
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