Question

write difference between speed and velocity?​

Answer 1

Speed is how fast an object is moving. It is calculated by the displacement of space per a unit of time. Velocity is the rate at which an object changes position in a certain direction. It is calculated by the displacement of space per a unit of time in a certain direction. Velocity deals with direction, while speed does not.

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Answer 2

Difference between speed and velocity are as follows : 

1. Velocity has direction and Speed is non directional.

2. Velocity follows vector law of algebra but speed do not.

3. Velocity can be +ve, -ve or zero but speed is non negative.

4. Velocity is vector quantity but speed is scaler quantity.