Question

different between speed and velocity? ?

Answer 1

hiiiii friend!!!!!
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SPEED: 1) it is the distance travelled by an object per unit time.
               2) it is scalar quantity, direction not required.
               3) its unit is m/s and is always positive.
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VELOCITY : 1) the rate of change of position of a body is called velocity.
                      2) S.I unit is m/s.
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i think it may help u!!!!*_*

Answer 2

The time rate of change in distance is known as speed while the time rate of change in displacement is called velocity..
The S.I. unit of speed and velocity is same i.e. m/s.
But speed is a scalar quantity and velocity is vector quantity...
Hope it helps..