Day+20


 * Forces in 2D**

Some resources used from the day.

Problem sheets

A classic demonstration: 'The monkey and the hunter'. This principle is explored in a Mythbusters show about bullets, too. Well worth a look

I've done some model answers for the projectathon sheet. I did it in a hurry so answers may contain errors in notation and calculation, radical misunderstandings of the laws of physics, may be illegible, obscene or likely to cause grave offence. I take no responsibility for any injury, personal calamity or embarrassment suffered as a result of using these answers.