- #1
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- Homework Statement
- see attached
- Relevant Equations
- vector differentiation
I need a justification that ##|\dfrac {dr}{dt}|##=##\dfrac {ds}{dt}## cheers guys... all the other steps are easy and clear to me...
Last edited:
We have ##ds \equiv |d\vec r|##.Homework Statement:: see attached
Relevant Equations:: vector differentiation
View attachment 297138
I need a justification that [Modulus ##\big | \dfrac {dr}{dt} \big |##=##\dfrac {ds}{dt}##] cheers guys... all the other steps are easy and clear to me...
We have ##ds \equiv |d\vec r|##.