Question

A physical quantity measured is -20 ms-1.It is speed or velocity

Answer 1

Answer:

It is velocity

Explanation:

Because speed is also positive . If negative sign is present , it indicates the direction along with magnitude.

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Answer 2

Answer:

Your answer is Velocity .It has direction and magnitude. You can measure speed anywhere, but velocity is measured from a point of reference. Hence when you go backward from the point of reference, you use a negative sign, but putting one for speed has no value.

so, -20ms-1 ,it indicates velocity.

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