Average velocity can be written as v-u/2 so why can't average speed also be written like that instead of total distance / total time? there are two equations for average velocity so which has to be used when?
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Point to remember, velocity is vector and speed is scalar quantity. They both will be define differently.
Average velocity: Is defined as rate of change of total displacement
Vavg= Net displacement/total time.
average speed:
it is total distance covered by body in unit time.
Average speed=total distance/total time
Its unit is same as that of speed that is m/s.
Average velocity: Is defined as rate of change of total displacement
Vavg= Net displacement/total time.
average speed:
it is total distance covered by body in unit time.
Average speed=total distance/total time
Its unit is same as that of speed that is m/s.
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