Describe how acceleration and velocity are related and specify if these are the scalar or vector quantities

Question

osprey · Answer

acceleration is the CHANGE in velocity with TIME. In a car a test of its acceleration in UK is its time to go from 0 to 60 mph. A "sexy" car will do it in about 10 seconds. Which means that the occupants will feel pushed back into their seats due to the acceleration. VELOCITY is DISPLACEMENT divided by TIME. Since displacement is a vector, so is velocity. ACCELERATION is VELOCITY divide by TIME. Since velocity is a vector, so is acceleration. What makes them vectors is that they have DIRECTION. This may be seen on a playground roundabout. You hang on as the thing rotates because you are being ACCELERATED TOWARDS THE CENTRE OF THE ROUNDABOUT. The word "towards" here is the DIRECTION bit, and the acceleration just mentioned is called CENTRIPETAL. Centripetal may be Greek for "centre seeking". Bon voyage http://perendis.webs.com