Question

distinguish between speed and velocity

Answer 1

Speed is defined as the ratio of distance by total tiime taken. Velocity is the ratio of displacement by total time taken. Velocity can also be decribed as a speed with a particular direction.

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Answer 2

$\textbf{SPEED}$

→ It is the rate of change of distance of a position with respect to time.

* Speed = Distance / Time

→ It is a scaler quantity (which contains magnitude only not direction).

→ It is always positive or zero.

→ It is greater or equal to velocity.
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$\textbf{VELOCITY}$

→ It is the rate of change of displacement with respect to time.

* Velocity = Displacement / Time

→ It is a vector quantity. (which contains both magnitude and direction)

→ It is positive, negative or zero.

→ It is smaller than speed.
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* S.I. unit = m/s

[Of both Speed and Velocity]