A 120 kg refrigerator is 80 cm square (whats that mean) and 2 meters tall. the coefficient of friction between the fridge and the floor is .25. How much force will it take to push it across the floor upright position? How much force if it's laid on one side? All I know is I have to use the Ff formula but what baffles me is how to get a Newton into the formula. Plz help, I know I have to know this for a test.
2007-10-07 14:34:29 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Physics
80cm square means it's dimensions on the base are 80cm x 80cm.
2007-10-07 14:37:12 · answer #1 · answered by Gruntled Employee 6 · 0⤊ 1⤋
mg is the way to get the downward force on the fridge. g is 9.8nm/s^2. When the fridge is on its side the force to move it should be the same, assuming the coefficient of friction stays the same. This probably wouldn't be the case in reality since when the refridgerator is upright it's resting on rubber feet and when it's on its side it's painted metal in contact with the floor, but I doubt this simple problem will take that into account. 80cm square means that the bottom of the fridge is a square that measures 80cm x 80cm.
2007-10-07 14:41:54 · answer #2 · answered by LG 7 · 0⤊ 0⤋
AP Physics is tough. If your math grades are at least a B then I would consider taking AP Physics. It will be tough for you unless you are really strong in math.
2016-05-18 03:48:31 · answer #3 · answered by ? 3 · 0⤊ 0⤋
none of that is important.... ... DON'T lay the refrigerator on it's side....if the ref. is cooling that's all that matters.
oh, i read the rest of the question about the test.
sorry can't help you there. really though, you should never lay a refrigerator on it's side.
2007-10-07 14:40:11 · answer #4 · answered by kym b 2 · 0⤊ 0⤋
1 kg i one liter
in europa and the rest of the world we use meter
if you have problems then ask a doctor
2007-10-07 14:37:52 · answer #5 · answered by jette n 3 · 0⤊ 0⤋