Answers

2016-04-19T19:28:21+05:30
velocity is a vector expression of the displacement that an object or particle undergoes with respect to time . the standard unit of velocity magnitude (also known as speed ) is the meter per second (m/s). alternatively, the centimeter per second (cm/s) can be used to express velocity magnitude. the direction of a velocity vector can be expressed in various ways, depending on the number of dimensions involved.
for eg-  '
5 metres per second' is a scalar (not a vector), whereas '5 metres per second east' is a vector.
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2016-04-19T19:30:01+05:30
Velocity is defined as the rate at which an object changes position.
Velocity= Displacement/ Time
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