I have to find the coefficient of knietic friction between a shoe and a wooden board. I have managed to get the static friction by placing the shoe on the board and raising it until the shoe starts moving. The only materials I can use is the wooden board, shoes and a metre stick. I have tried one way, but my teacher says it isn't accurate enough, and I haven't been able to devise an experiment that would help me find the coefficient of kinetic friction. If anyone has some tips or ideas on how to do this, I would be very grateful for their help.
2007-10-14 13:43:09 · 1 answers · asked by smiley5671 2 in Science & Mathematics ➔ Physics
If possible, repeat the following until you find the correct angle.
Raise the board to some angle less than the static friction angle, and give the shoe a starting nudge. You have the correct angle when the shoe continues to move at a constant rate, which you apparently are expected to judge by eye. In the real world, surface irregularities will probably make this even more difficult. Lotsa luck.
2007-10-16 10:19:24 · answer #1 · answered by kirchwey 7 · 0⤊ 0⤋