Since velocity describes both speed and direction you can call it

1 answer:

4 0

Since velocity describes both speed and direction, you can call it a "vector" quantity, and legitimately label it "velocity".

Since speed has no direction, it's a scalar quantity, and it's wrong to call it "velocity" as so many often do.

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Answer:

kinetic friction may be greater than 400 N or smaller than 400 N

Explanation:

As we know that maximum value of static friction on the rough surface is known as limiting friction and the formula of this limiting friction is known as

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now we know that

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