The instantaneous speed is the limit of the average speed as the duration of the time interval. DSdT is the derivative of displacement vector S with respect to T. Instantaneous speed is a scalar quantity.
So Expression of Velocity V dxdt.
The following formula can be used to calculated the velocity of an object at any given point in time assuming initial time 0. In the very short time duration the instantaneous speed of the meteor will be given by. It is made use of to calculate the rate of change of displacement for any given instant of time. Formula of instantaneous speed is Speed_ifracdsdt Formula of instantaneous velocity is V_ilim_Delta trightarrow 0fracdsdt.