what is a real life example of Newton's 1st law?

Answer 1

There are many excellent examples of Newton's first law involving aerodynamics. The motion of an airplane when the pilot changes the throttle setting of the engine is described by the first law. The motion of a ball falling down through the atmosphere, or a model rocket being launched up into the atmosphere are both examples of Newton's first law. The motion of a kite when the wind changes can also be described by the first law.

Answer 2

http://en.wikipedia.org/wiki/Newton%27s_first_law
Check this out ^

There are many examples of Newton's first law.

-Go to a baseball game. The pitcher throws the ball, but it still falls and slows down. Why? The ball wants to continue in a straight line, but it can't because of the force of both gravity and air reacting upon it.

-A car driving. If the driver took his or her foot off the pedal on Earth, gravity and wind resistance would act upon it, gradually slowing it down. But if it was in space, (pretend the car has somehow already built up speed) it would continue on in the same direction that it was headed forever, until it ran into an object with a great amount of gravity or into a gas cloud, or some other phenomenon, it would slow down a little, or change direction. If it ran into a planet or star, I doubt you'd see that car again...

All for now, sorry. I'll try to post more because I have to go at the moment.

Answer 3

Um, well, if I remember right it says that "an object in motion stays in motion unless acted upon by an outside force". Well, an example would be, if you push a grocery cart across a level parking lot as hard as you can, it will go far. But slowly friction (friction being the "outside force") would slow it down and eventually the cart would stop moving altogether.

Also, if you throw a ball in the air with a lot of force, it will go in the same direction for a while until gravity and air resistence(the oustside forces) slow it down. However, if you were to do this on the moon, the ball would continue moving because there wouldn't be the gravity and air resistence to stop it.

Answer 4

Any of the space probes that have been sent out have continued moving for months/years until acted on by the gravity of something else. The voyager space probes are really cool examples of this because thier courses were plotted so that they would have thier trajectories bent by the Sun, Jupiter, Saturn and either Uranus or Neptune. But they're still going.

Answer 5

Say you are in a car goin 85 miles an hour down a major highway and suddenly you slam on the brakes due to the car goin 85 mi an hour so was your body henceforth if you are not waring your seat belt you keep goin 85 and through eh window the sudden slow in speed is the unbalanced force.

Answer 6

well the first law of motion is "every object will continue to travel in a straight line until another force acts upon it" so this happens with atoms planets in orbit and a lot of other things, i am on about centripetal force (cent re seeking) with out it we would be dead, i am talking about the change in direction. in atoms the centripetal force is electrostatic, it is holding the electrons to the centre or "nucleus" with out this nothing as we know it could exist. and planets in orbit, they have a constant speed but a changing velocity, becuase they want to travel in a straight line but there is another force gravity like electrostatic keeps the planets in orbit of the sun in the case of our solar system now the speed stays the same but the velocity changes becuase it travels in different directions, other than round!

Answer 7

The Iraq War

Answer 8

ice skating. or a hockey puck. if you put it on the ice, it wont move. if somehting pushes it, it will move for a long time, until something else stops it, or friction does. ice is a good illustration because normally friction is greater, so its more difficult to see the effect of newton/'s law.

Answer 9

Tho only thing that came to mind is the satelites...once the get into orbit they stop having any propulsion.and since in space there is no resistance due to air molecules the speed (magnitude) of the satelite remains unchanged...i.e ΣF=0 =>DV=0

Answer 10

Put a book on the floor and watch it until it moves on its own.

When you get tired of watching, pick it up and whack a friend.