11 - What is Definition of Average Speed & Velocity in Physics? (Speed Formula & Velocity Formula)

In this lesson, we explain the difference between average speed and average velocity in physics. We start by showing that the average velocity is defined to be the displacement of an object divided by the elapsed time during the motion. Because of this definition, velocity is a vector quantity because the displacement is a vector as well.

The speed formula is the exact same equation as the velocity formula with the difference that we take the absolute value of the displacement before doing the calculation. Because of this, speed is defined as distance divided by time elapsed. Speed is not a vector - it is a scalar quantity.

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[nadskis]

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[yvonnembalita]

Can it be possible in instances that you are not given the time but distance is given

[sarahamu]

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[nanakofi]

A body of mass 250g is released from the top of a building if the body hit the ground a velocity of 4ms calculate the hight of the building. Someone help please.

[santoshsharma-orzu]

I've understood this but can someone explain why we can't take the average instead ? If you know, what I mean.

[lydiaimess]

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