In this short problem we investigate the tensions and compressions
in a framework made from springs and ropes.
A series of activities to build up intuition on the mathematics of
How high will a ball taking a million seconds to fall travel?
Gravity on the Moon is about 1/6th that on the Earth. A
pole-vaulter 2 metres tall can clear a 5 metres pole on the Earth.
How high a pole could he clear on the Moon?
Which parts of these framework bridges are in tension and which parts are in compression?
See how little g and your weight varies around the world. Did this
variation help Bob Beamon to long-jumping succes in 1968?
Whirl a conker around in a horizontal circle on a piece of string.
What is the smallest angular speed with which it can whirl?
A collection of problems related to the mathematics of fundamental physics.
Invent shapes with different numbers of stable and unstable equilibrium points