In article , B2431
writes
It's basic calculus.
I'm not too sure if 'basic' and 'calculus' sit too well together
Try this one in English units: if you drop an object the
function for determining how far it has fallen is X=16T^2, where X is the
distance travelled in feet and T is the time in seconds. The first derivative
is V = 32T where V is instantaneous velocity expressed in feet per second. The
first derivative of V, and the second of X, is A = 32 feet/second/second which
is the acceleration due to gravity. Integration is the reverse process. This
function doesn't take into account drag, but if you drop a bowling ball from
the top of a 10 story building drag is negligible.
The best bit I liked was deriving the equations of motion from the three
basic dimensions 'L', 'M' & 'T' (distance, mass, time).
--
John