i want to measure the speed of my ball,so how do i get to know show me some experiment
2007-03-01 03:26:21 · 3 answers · asked by road t 1 in Science & Mathematics ➔ Physics
It's actually cheaper just goint to radio shacking and buying a Busnell radar gun
2007-03-02 04:29:02 · answer #1 · answered by Tino 7 · 0⤊ 0⤋
The least expensive way would be to set up two fast photocells a couple of meters apart, aimed at spots of light and to throw the ball past them. A timing chip that was turned on by the first cell and off by the second will give you the time it took to travel the given distance and you can compute the speed in meters per second. Any other device is going to cost you a lot more in parts and knowledge.
2007-03-01 12:14:09 · answer #2 · answered by Mike1942f 7 · 0⤊ 0⤋
Get yourself one tin can and a long long piece of string. Tie the string to the bumper of a big truck. Stand in the middle of the road and have a friend drive the truck toward you at 30 mph. Close your eyes and hold the can to your ear...
2007-03-01 11:43:38 · answer #3 · answered by rico3151 6 · 0⤊ 1⤋