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Marianna [84]
3 years ago
10

An object has a mass of 12.8 kg and a velocity of 8.4 m/s. what is the kinetic energy of the object?

Physics
1 answer:
xenn [34]3 years ago
4 0
Kinetic energy = 1/2 * mass * velocity^2
KE = 1/2*m*v^2

Given m = 12.8 kg, v = 8.4 m/s;

KE = 1/2(12.8)(8.4)^2
KE = 451.58 J
KE = 452 J

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7 0
4 years ago
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insens350 [35]

Answer:

24.531 m

Explanation:

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v = Final velocity

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Equation of motion

s=ut+\dfrac{1}{2}at^2\\\Rightarrow s=6.1\times 1.7+\dfrac{1}{2}\times 9.8\times 1.7^2\\\Rightarrow s=24.531\ m

The initial height of the rock above the ground is 24.531 m

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Answer:

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Explanation:

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