Question

in chapter twelve of science ncert chapter what is speed

Answer 1

In everyday use and in kinematics, the speedof an object is the magnitude of its velocity(the rate of change of its position); it is thus a scalar quantity.The average speed of an object in an interval of time is the distancetravelled by the object divided by the durationof the interval; the instantaneous speed is the limit of the average speed as the duration of the time interval approaches zero.
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