Question

Why formula for instantaneous speed is equal to that of instantaneous velocity?

Answer 1

Explanation:

see bro as u know instantaneous speed or velocity are taken at particular instant of time .

speed is scalor quantity and has no direction. and at at instant infinitely small distance the direction can not be measured as infinitely small length is taken as a straight line without any direction.

so both inst velocity and inst speed have same formula

Answer 2

Instantaneous velocity. The rate of change of displacement of an object in a particular direction is its velocity.The magnitude of instantaneous velocity equals the instantaneous speed. This happens because, for an infinitesimally small time interval, the motion of a particle can be approximated to be uniform.