# Whats A Right Handed Triplet In Vectors ?

1. Jan 2, 2005

### coldfusion

What Is Meant By A Right Handed Triplet ?

Example Of A Body Having Zero Velocity But Having Acceleration ?

2. Jan 2, 2005

### dextercioby

1.For the first question,i assume it's a right trihedron.Think about the Oxyz axis.The unit vectors $\vec{i},\vec{j},\vec{k}$ form a right trihedron.The right corkscrew rule can be applied.

$$x(t)=A\sin\omega t;v_{x}=A\omega \cos\omega t;a_{x}=-\omega^{2}A \sin\omega t$$
For $$t=\frac{\pi}{2\omega}$$,u'll find zero velocity and nonzero acceleration.