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Newton's 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.

Newton's 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.

Newtons third law-For every action there is an equal and opposite reaction.

2006-12-27 04:37:03 · 5 answers · asked by Brandy 1 in Science & Mathematics Physics

5 answers

1st Law - The door is open (and level). If I don't push it, it doesn't move (and therefore doesnt close). When we assume no friction, if i push it towards the closed direction, it won't stop until it hits the door jam. the behavior of any system or object will not change unless you (or the other forces of the world) do something to change its behavior.

2nd Law: If i push the door gently, it closes softly. If i push the door hard, it slams. Increasing force on an object of the same mass means it accelerates faster. If i push on a light wood door it closes quickly, if i apply the same push to a heavy iron door, it closes very slowly. For constant forces, increasing the mass decreases the corresponding acceleration.

3rd Law: I get angry at a kid trying to trick others into doing his or her homework for him. I punch them in the jaw. The equal and opposite reactionary force is why my hand hurts the next morning.

2006-12-27 05:20:11 · answer #1 · answered by promethius9594 6 · 0 0

To imagine how these laws work, it's useful to imagine astronauts floating in their spaceship. The fist law says two things. If an astronaut is floating still, not moving at all, he won't all of a sudden start moving. Also it says if an astronaut is floating in a particular direction, he wont slow down or turn unless something pushes/pulls him or her. The second law says that a harder push will change the astronauts speed more than a light push. Also it tells us that a heavy (more massive) astronaut is harder to push than a light one. The third law involves two astronauts. It says if one astronaut pushes another, the one pushing will fly back in response (like recoil of a shotgun). These laws apply to us in everyday life, but there not so apparent due to the effects of air resistance and gravity, a problem the astronaut example avoids.

2006-12-27 05:07:59 · answer #2 · answered by Tony O 2 · 0 0

Newton I: a greased pig sliding a very long distance at constant velocity, in a straight path along a greased floor

Newton II: greased pig passes gas, which increases its velocity of the slide along the floor

Newton III: greased pig slams into a wall at the end of its slide and comes to an abrupt halt

Enjoy.

2006-12-27 05:06:02 · answer #3 · answered by oldprof 7 · 0 0

regulation a million I. each and every merchandise in a state of uniform action has a tendency to proceed to be in that state of action till an exterior tension is utilized to it. ex a comet travels via area, and gets pulled in the direction of a brilliant planet via gravity. regulation 2 the relationship between an merchandise's mass m, its acceleration a, and the utilized tension F is F = ma. Acceleration and tension are vectors (as indicated via their symbols being displayed in slant ambitious font); in this regulation the path of the stress vector is a similar because of the fact the path of the acceleration vector. ex a race automobile traveling down a right this moment away supplies itself a strengthen of nitrous. regulation 3 for each action there is an equivalent and opposite reaction. once you pound your fist against a table with a definite tension, the table exerts a similar tension returned into your fist.

2016-10-28 11:34:52 · answer #4 · answered by ? 4 · 0 0

Newton's 4th law:
Do your own homework

2006-12-27 04:51:41 · answer #5 · answered by cesium 1 · 3 1

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