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IrinaK [193]
3 years ago
12

Calculate the Kinetic Energy of a car with a mass of 500 kg traveling at a velocity of 10 m/s, north. Please explain how you got

the answer.
A: 2,500 J

B: 50,000 J

C: 100 J

D: 25,000 J
Physics
1 answer:
alex41 [277]3 years ago
4 0
The formula for Kinetic Energy is:

KE = 1/2mv^2

So, KE = 1/2(500)(10)^2

KE = 1/2(500)(100)

KE = 1/2(50000)

KE = 25,000 J
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3 0
2 years ago
A spring with spring constant of 26 N/m is stretched 0.22 m from its equilibrium position. How much work must be done to stretch
Evgen [1.6K]

Answer:

1.503 J

Explanation:

Work done in stretching a spring = 1/2ke²

W = 1/2ke²........................... Equation 1

Where W = work done, k = spring constant, e = extension.

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W = 1/2(26)(0.34²)

W = 13(0.1156)

W = 1.503 J.

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3 years ago
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Paraphin [41]

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7 0
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There are 120 degrees in a straight angle. true false
mixas84 [53]
That would be false.
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