3 years ago

What is the main difference between velocity and speed?

1 answer:

4 0

Speed is scalar, meaning it's only going to be like 74 mph, doesn't matter which direction. Velocity is a vector, meaning it has direction. You can go -74mph when talking about velocity, not speed.

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A 77.0 kg woman slides down a 42.6 m long waterslide inclined at 42.3. at the bottom, she is moving 20.3 m/s.how much work did f

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Answer:

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Explanation:

The height h is given by, $h=42.6sin42.3^{o}$

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$PE=77*9.81*42.6sin42.3^{o}=21656.7095 Nm$

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