Which of the following statements is not true about speed? A. Speed has no direction. B. Speed is a vector quantity. C. Speed and position are separate variables. D. Speed is measured relative to another object.

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25-01-2017
Physics

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Which of the following statements is not true about speed? A. Speed has no direction. B. Speed is a vector quantity. C. Speed and position are separate variables. D. Speed is measured relative to another object.

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KP7 KP7 · Answer 1 · 2017-01-25T16:40:46+01:00

KP7 KP7

25-01-2017

B. Speed is a vector quantity.

Speed is a scalar quantity, and therefore has no direction. It is velocity that is a vector quantity, not speed.

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bhoopendrasisodiya34 bhoopendrasisodiya34 · Answer 2 · 2022-02-26T11:52:28+01:00

Statements, which is not true about speed is that, the speed is a vector quantity. Option B is the correct option.

What is the speed of a body?

The speed of a body is the rate at which it covers the total distance is in the time taken. The speed of the body is given as,

[tex]S=\dfrac{d}{t}[/tex]

Here, (d) is the distance traveled by the body and (t) is time taken by the body to cover that distance.

As the distance traveled by body is measured in meters and the time taken by the body to cover that distance is measure in seconds. Thus the unit of speed is meter per second.

The speed is a scalar quantity as it has only magnitude and not direction. If the speed of the body has direction, then it is known as the velocity. The velocity of the body is a vector quantity.

Hence, the statements, which is not true about speed is that, the speed is a vector quantity. Option B is the correct option.

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