write note on velocity
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It is defined as the rate of change of displacement.
It is a vector quantity. It can be negative, zero or positive and it can decrease with time and in SI it is measured in m/s and in cgs it is measured as cm/s.
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Answer : velocity is defined as a vector measurment of the rate and direction of motion. put simply ,velocity is the speed at which something moves in one direction. The speed of a car traveling north on a major freeway and the speed a rocket launching into space can both be measured using velocity.
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