problem
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Lunar Leaper
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?
article
High Jumping
How high can a high jumper jump? How can a high jumper jump higher without jumping higher? Read on...
problem
Favourite
Go spaceship go
Show that even a very powerful spaceship would eventually run out
of overtaking power
problem
Favourite
Escape from planet Earth
How fast would you have to throw a ball upwards so that it would
never land?
problem
The ultra particle
Explore the energy of this incredibly energetic particle which struck Earth on October 15th 1991