See how little g and your weight varies around the world. Did this
variation help Bob Beamon to long-jumping succes in 1968?
A collection of problems related to the mathematics of fundamental physics.
The weight $W$ of an object on earth depends on the mass $m$ of
the object and the force of gravity. The weight is
usually given by the expression
W = 9.8 m.
However, the actual weight decreases the further you get from the
centre of the earth. Newton worked out that weight can be measured
more accurately as