well i'm a new member in here.. n i need help in doing my project..
actually it's not very complicated but the thing is that i have problems in making a perfect design of it..
the project is to design a device to shoot a ping pong ball.. using these materials:
*a pair of scissors
* 1 meter of cotton string
* 3 wooden pencils
*2 papper clips
* 2 rubber bands
* 2 A4 sheets
* 1 bottle of water (500ml) it can be filled with water
* sticky tape
the rule is that we cannot use human power in streching the rubber band not before or after nor during the experinment ..
i'm waiting for ur replays..
regard
