Everything about Velocity totally explained
In
physics,
velocity is defined as the
rate of change of
position. It is a
vector physical quantity; both speed
and direction are required to define it. In the
SI (metric) system, it's measured in
metres per second: (m/s) or ms
-1. The
scalar absolute value (
magnitude) of velocity is
speed. For example, "5 metres per second" is a
scalar and not a vector, whereas "5 metres per second east" is a vector. The
average velocity
v of an object moving through a displacement
If forces are in the radial direction only with an inverse square dependence, as in the case of a gravitational
orbit, angular momentum is constant, and transverse speed is inversely proportional to the distance, angular speed is inversely proportional to the distance squared, and the rate at which area is swept out is constant. These relations are known as
Kepler's laws of planetary motionFurther Information
Get more info on 'Velocity'.
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