I.E. using 3rd law of motion (4 every action there is an equal and opposite reaction.
What I need to know is how this is applied to a rollar coaster, more specifically marble one.
2007-11-07 13:43:18 · 13 answers · asked by ✔ 5 in Science & Mathematics ➔ Physics
my teacher said it was Fweight.
Thanks everybody
2007-11-08 10:07:35 · update #1
On a level course the answer would be simple: F=ma, so the coaster decelerates with acceleration a = Ffriction/m. That decelerating coaster exerts a forward force = -Ffriction on the source of the friction (which could be, e.g., the track or the air). It's just what happens when you have no brakes and your friend, whose car is directly in front of you and touching, puts on his brakes. His car applies a backward force, your car applies an equal forward force.
On the roller coaster, you also have the same decelerating force but now it's being summed with the gravity force which varies with slope (Fgrav = g*sin(theta)). Still, Ffriction is being opposed by that deceleration even if the net acceleration is positive.
The result in either situation is an energy loss which can most simply be calculated as Ffriction*distance, assuming Ffriction is constant.
2007-11-07 14:15:44 · answer #1 · answered by kirchwey 7 · 0⤊ 0⤋
Friction is always against the force producing motion. Whatever is powering your roller coaster to move is overpowering the force of friction.
2007-11-07 13:49:11 · answer #2 · answered by Anonymous · 0⤊ 0⤋
one million) skill 2) the article will pass interior the direction of the stress. 3) stress and distance 4) seventy 5 N 5)36 N 6)two hundred J 7) ninety,000 J 8) skill 9) skill = artwork/time 10) joules 11) skill 12) june
2016-10-15 10:28:29 · answer #3 · answered by ? 4 · 0⤊ 0⤋
friction force is the reaction to the applied force that causes motion
2007-11-07 13:52:24 · answer #4 · answered by Anonymous · 0⤊ 0⤋
I'm not sure. For the action of friction is the reaction of heat. Without gravity/force, you can't have friction....
2007-11-07 13:50:03 · answer #5 · answered by Anonymous · 0⤊ 1⤋
Go to www.funderstanding.com/k12/coaster/help.com and read some of that mostly #5 It might have what your looking for the question was kinda hard to understand.
2007-11-07 14:01:00 · answer #6 · answered by Anonymous · 0⤊ 0⤋
the force that is applied opposes the frictional force.
2007-11-07 13:46:36 · answer #7 · answered by fleisch 4 · 0⤊ 0⤋
The initial acceleration from your first drop.
2007-11-07 13:51:02 · answer #8 · answered by CJB 3 · 1⤊ 0⤋
I'd say inertia but that's just me.
2007-11-07 13:46:05 · answer #9 · answered by Mabin 3 · 0⤊ 1⤋
ummm speed? gravity? movement?
2007-11-07 13:46:11 · answer #10 · answered by Abira 4 · 0⤊ 1⤋