Suppose an object moves in such a way that its acceleration vector is always perpendicular to its velocity vector. Show that speed of the object is constant.
For two vectors to be perpendicular: A[itex]\bullet[/itex]B=0
Speed of the object = ||Velocity Vector||
The Attempt at a Solution
I have no idea how to approach this question. How can the speed of the object affect whether or not the acceleration vector is perpendicular to the velocity vector?