There are **11** NRICH Mathematical resources connected to **Forces**, you may find related items under Mechanics.

Challenge Level

A series of activities to build up intuition on the mathematics of friction.

Challenge Level

How high will a ball taking a million seconds to fall travel?

Challenge Level

Which parts of these framework bridges are in tension and which parts are in compression?

Challenge Level

In this short problem we investigate the tensions and compressions in a framework made from springs and ropes.

Challenge Level

Whirl a conker around in a horizontal circle on a piece of string. What is the smallest angular speed with which it can whirl?

Challenge Level

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?

Challenge Level

A collection of problems related to the mathematics of fundamental physics.

Challenge Level

See how little g and your weight varies around the world. Did this variation help Bob Beamon to long-jumping succes in 1968?

Challenge Level

Invent shapes with different numbers of stable and unstable equilibrium points

This article for teachers sets out some ideas for introducing children to some of the concepts at the root of mechanics.

Challenge Level

Is there a best way to stack cans? What do different supermarkets do? How high can you safely stack the cans?