- #36

vcsharp2003

- 897

- 177

Yes, I get that part. If only direction of velocity is changing but not it's magnitude then tangential acceleration must be zero.haruspex said:Tangential acceleration is the component of acceleration parallel to the velocity. If speed is constant, that must be zero.

(In vectors, ##0=\frac{d}{dt}v^2=\frac{d}{dt}\vec v^2=\vec v.\dot{\vec v}=||\vec v|| a_t##.)