High School

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A race car stops with a 50000 J of work done by the brakes within 10 seconds. Calculate the power of the brakes of the given car.

Answer :

Answer:

The power is:

[tex]5000~W[/tex]

Explanation:

Let's first look at the formula for power:

[tex]P=\frac{E}{t}[/tex]

Where, [tex]P[/tex] is power in watts, [tex]E[/tex] is energy in joules, and [tex]t[/tex] is the time in seconds.

From the information, we can state that the energy is [tex]50000~J[/tex], and the time is [tex]10~s[/tex].

So, all we need to do is substitute them into the equation:

[tex]E=50000~~~t=10\\P=\frac{E}{t}\\P=\frac{50000}{10}\\P=5000[/tex]

Thus, the power is:

[tex]5000~W[/tex]

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