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Dafna11 [192]
2 years ago
12

A 0.450 kg soccer ball has a kinetic energy of 119 J.

Physics
1 answer:
Anastaziya [24]2 years ago
8 0

Answer:

V is approximately = 23m/s

Explanation:

Kinetic energy = ½ mv²

Where m= mass = 0.450kg

V= velocity =?

K. E = 119J

Therefore

K. E = ½ mv²

Input values given

119= ½ × 0.450 × v²

Multiply both sides by 2

119 ×2  = 2 × 1/2 × 0.450 × v²

238= 0.450v²

Divide both sides by 0.450

238/0.450 = 0.450v²/0.450

v² = 528.89

Square root both sides

Sq rt v² = sq rt 528.89

V = 22.998m/s

V is approximately = 23m/s

I hope this was helpful, please rate as brainliest

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A student solving for the acceleration of an object has applied appropriate physics principles and obtained the expression a = a
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Answer:

The correct option is option (a).

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Answer:

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Solution:

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Lost mass is proportional to the square root of the distance covered while lifting:

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