Explain where the energy is coming from?
2007-06-24 16:29:29 · 11 answers · asked by zubair y 1 in Science & Mathematics ➔ Physics
The energy comes from gravity/acceleration and friction.
2007-06-24 16:31:29 · answer #1 · answered by Mickey Mouse Spears 7 · 0⤊ 0⤋
Its been a few years since Phys 1 and 2....the energy is coming from the Gravitation Potential Energy of the earth, defined as;
PE = mgh, m=mass, g=gravity, h=measure in height from an arbitrary zero level.
I believe Kinetic Energy has more to do with net work done on an object and changes in the work
Although, both cases, encompass Newton’s second law, Work, and the kinematics equations....
For the best answer to the problem, I would touch on all the above subjects which would mean referring back to the books and summarize your findings showing you know the course material if this is a college level course/class question. Otherwise research PE and give your findings!
2007-06-25 00:29:16 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The brakes only heat if the brakes are applied while traveling down a mountain. Friction causes the heat as the two surfaces touch forcing the rotors to slow down. However, any expirenced criver will use the transmission to slow themself rather than the brakes when possible as this can put more wear and tear on the brake system.
2007-06-24 23:32:37 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The kinetic energy of the momentum of the car is dissipated as heat energy into the air by the brake system.
2007-06-24 23:51:58 · answer #4 · answered by Thomas B 2 · 0⤊ 0⤋
Your brakepads get hot whenever you break your car whether uphill, downhill, or on flat roads.
The heating is caused when your brakepads are rubbing against the rotating wheelrods to slow down the spiinning and eventually comes to a halt. This is heating of brakepads is caused through friction of the pads against the wheelrods.
2007-06-25 00:54:44 · answer #5 · answered by thinker 4 · 0⤊ 0⤋
In a nutshell: friction. In technical terms, the pad and the...whatever the other thing is, i don't own a car, rub together, causing the atoms to vibrate, creating heat.
2007-06-24 23:34:04 · answer #6 · answered by ? 2 · 0⤊ 0⤋
the pressure of the brake pad against the disk or drum. time for a brake job man.
2007-06-24 23:33:17 · answer #7 · answered by 1oldone 5 · 0⤊ 0⤋
Your foot pressing on the brake pedle causing the brakes and calaper to press causing frition and heat.
2007-06-24 23:31:24 · answer #8 · answered by Jennifer @---'--,---- 3 · 1⤊ 0⤋
It is called friction.... do u need new brake pads haha?
2007-06-24 23:31:09 · answer #9 · answered by Anonymous · 0⤊ 0⤋
you tell me-lm not a teacher
2007-06-24 23:31:58 · answer #10 · answered by Anonymous · 0⤊ 1⤋