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shutvik [7]
3 years ago
14

Speed with direction unit M/S, in a direction

Physics
1 answer:
qwelly [4]3 years ago
3 0

Answer:

Speed is a scalar quantity and does not keep track of direction; velocity is a vector quantity and is direction aware.

Explanation:

I hope this helps you!

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Answer:

At the highest point the velocity is zero, the acceleration is directed downward.

Explanation:

This is a free-fall problem, in the case of something being thrown or dropped, the acceleration is equal to -gravity, so -9.80m/s^2. So, the acceleration is never 0 here.

I attached an image from my lecture today, I find it to be helpful. You can see that because of gravity the acceleration is pulled downwards.

At the highest point the velocity is 0, but it's changing direction and that's why there's still an acceleration there.

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Explanation:

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It means that less force is needed for this task to complete.

Therefore, the correct option is (C).

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The answer should be B 
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