i am revising for my university exam and am really struggling getting my head round newtons law of gravitation need to work out how to use the formular can anyone help ?????
2007-01-11 11:36:23 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Basically the gravitational force between two objects is the product of their masses times a constant (G) divided by the square of the distance between them. This is normally given in vector form which can be a bit confusing if you don't have the maths, but then if you are doing physics (like me last year yippy) the maths should bother you.
2007-01-11 12:26:58 · answer #1 · answered by Mark G 7 · 0⤊ 0⤋
An merchandise at relax will proceed to be at relax except acted upon by applying an exterior and unbalanced stress. An merchandise in action will proceed to be in action except acted upon by applying an exterior and unbalanced stress. This regulation is likewise stated as the regulation of inertia. the internet stress on an merchandise is the vector sum of all the forces appearing on the object. Newton's first regulation says that if this sum is 0, the state of action of the object does no longer substitute. actually, it makes here 2 factors: An merchandise that may not moving won't circulate until a internet stress acts upon it. An merchandise that's in action won't substitute speed (boost up) until a internet stress acts upon it. the 1st factor seems extremely obtrusive to maximum folk, however the 2d could take some questioning with the aid of, via fact we've no adventure in each-day existence of issues that save moving continuously (different than celestial bodies). If one slides a hockey %. alongside a table, it would not circulate continuously, it slows and at last is composed of a end. yet in accordance to Newton's rules, it quite is via fact a stress is appearing on the hockey %. and, beneficial sufficient, there is frictional stress between the table and the %., and that frictional stress is interior the direction opposite the circulate. that's that this stress which motives the object to sluggish to a end. interior the absence of this style of stress, as approximated by applying an air hockey table or ice rink, the %.'s action does no longer sluggish. Newton's first regulation is in basic terms a restatement of what Galileo had already defined and Newton gave credit to Galileo. It differs from Aristotle's view that each and absolutely everyone gadgets have a organic place interior the universe. Aristotle believed that heavy gadgets like rocks had to be at relax on the earth and that gentle gadgets like smoke had to be at relax interior the sky and the celebs had to proceed to be interior the heavens. in spite of the shown fact that, a key distinction between Galileo's thought from Aristotle's is that Galileo found out that stress appearing on a physique determines acceleration, no longer speed. This perception ends up in Newton's First regulation - no stress potential no acceleration, and hence the physique will proceed to maintain its speed.
2016-12-12 09:31:00 · answer #2 · answered by ? 4 · 0⤊ 0⤋
(first law) Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.
Second Law) The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma. Acceleration and force are vectors (as indicated by their symbols being displayed in slant bold font); in this law the direction of the force vector is the same as the direction of the acceleration vector.
(thrid law) For every action there is an equal and opposite reaction.
ex: 56 kg 3.5 m/s^2 = 56 x 3.5 = 16 kg m/s^2
2007-01-11 11:43:28 · answer #3 · answered by •▐☺xXxHäV☼KxXx☺▐ • 4 · 2⤊ 0⤋
I would not become bogged down with theory. Accept the fact that force = mass x acceleration. Force is measured in Newtons , N,
mass in kg and acceleration in m /sec²
For example the mass may be 20kg and the accelaration 10m / sec².
Force, F, is given by:-
F = ma
F = 20 x 10 N = 200N
2007-01-11 22:36:46 · answer #4 · answered by Como 7 · 1⤊ 0⤋
1
2017-02-20 06:49:41 · answer #5 · answered by rogers 4 · 0⤊ 0⤋
(first law summary): objects tend to remain doing what they are doing unless acted on by an outside influence. (like daydreaming at work - you will continue to do so, until the boss shows up)
(second law summary): If you weigh 150 lbs and a guy running in the opposite direction weighs 300 lbs GET OUT OF HIS WAY - If he hits you, you might slow him down, but you are gonna go flying.
(third law summary): If you punch a stranger (action), they will get pissed, and punch you back. (reaction)
2007-01-11 14:55:41 · answer #6 · answered by Daremo 3 · 0⤊ 0⤋
the force is proportional to the product of the masses and inversely proportional to the square of the distance, i.e. multiply the masses together (kg) and then divide by the distance squared (m) and to change from a 'proportional to' into an equation the coeffiecient is G which is about 0.0000000000667 or 6.67*10^-11
F=GMm/d^2
2007-01-11 22:35:54 · answer #7 · answered by Lydia 2 · 1⤊ 0⤋
Do you want to know one of the factors common Law of attractionmaterial doesn't work for numerous individuals?Think it like a diet plan. If you wish to drop weight and you strive to lose it
2016-05-19 00:02:23 · answer #8 · answered by William 2 · 0⤊ 0⤋
Hi if you go here you should find everything you need on newtons 3 laws.goodluck ...W.W...
http://en.wikipedia.org/wiki/Newton's_laws_of_motion
2007-01-11 11:52:45 · answer #9 · answered by whitewitchnite 3 · 1⤊ 0⤋
between the masses of any two ob jects there is attraction
2007-01-11 11:43:59 · answer #10 · answered by grace 1 · 0⤊ 0⤋