3 years ago

When and why was the metric system invented?

1 answer:

3 0

The first practical realisation of the metric system came in 1799, during the French Revolution, when the existing system of measures, which had become impractical for trade, was replaced by a decimal system based on the kilogram and the metre.

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Explanation:

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3 years ago

A car and driver weighing 5060N passes a sign stating "Bridge out 27.5 meters ahead." She slams on the brakes and the car decele

OlgaM077 [116]

Answer:

198785.714286 Joules

Explanation:

$W=f*d$

$F=ma\\F=516.326530612*-14\\F=-7228.57142857 N\\$

To find work:

Now that the force and the distance are known, plug and chug:

$W=f*d\\W=-7228.57142857*27.5\\W=-198785.714286J$

Note that the question is asking for the magnitude of work, so the negative can be discarded as it is a directional component.

So, your answer is

198785.714286 Joules

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3 years ago