I How K= ∫mvdv = ∫m dx/dt dv ?

1. May 25, 2017

STAR GIRL

In equation K= ∫mvdv = ∫m dx/dt dv, how can we write v at any time t as dx/dt?? Does it make any sense??

2. May 26, 2017

Staff: Mentor

This is how velocity is defined. How do you define velocity?

3. May 26, 2017

STAR GIRL

I just wanna know that how can we write v as dx/dt

4. May 26, 2017

Ibix

Well, velocity is the rate of change of position (x) with respect to time (t). So v=dx/dt by definition.

5. May 26, 2017

STAR GIRL

Yup I got it. Thanks