How high can a high jumper jump? How can a high jumper jump higher without jumping higher? Read on...
A ball whooshes down a slide and hits another ball which flies off
the slide horizontally as a projectile. How far does it go?
How fast would you have to throw a ball upwards so that it would
The strength of gravity on the Moon is about 1/6th that on the Earth. A pole-vaulter around 2 metres tall can clear a bar about 5 metres from the ground on the Earth.
Roughly how high a bar could the pole-vaulter clear on the Moon?