What are some examples of Newton's 1st Law in action?

This is an example of Newton's first law, which states that an object in motion will continue to move in a straight line unless acted upon by an outside force. This law also applies to objects that are not accelerating, such as a rock being swung around on a string. The force you supply by swinging the rock in an arc causes it to move in a curved path, but when you release it, it continues in a straight line due to the absence of outside forces. This concept can be applied to any object that is not accelerating, whether it is stationary or moving at a constant velocity. In summary, Newton's first law states that an object will remain in motion in a straight line unless acted upon by an outside force, and this can be
  • #1
kath102245
Can anyone out there give me some examples of Newtons 1st law?

~Kathleen
 
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  • #2
A rocket at takeoff.
 
  • #3
Sure, Newton's first law says that an object in motion will stay in motion in a straight line (or an object at rest will stay at rest) unless acted upon an outside force.

So for the rest part, go outside and find a rock, watch the rock...just kidding, but pick up the rock and you are the outside force.

More seriously though, take the rock and tie some string to it, go away from anything you don't want broken and swing the rock around in an arc, feel the rock pull at your hand? that's you supplying a force so that the rock travels in a curve instead of a straight line...now watch the rock carefully becuase you're going to release it and watch it fly, not out away from your hand but perpendicular to the curve where you let it go, and it goes in a straight line.
 
  • #4
everything that isn't accelerating is an example of Newton's first law. for any object that is not accelerating (this includes turning or spinning), all the forces on it must be equal (i.e. the net force on the object is 0). such objects will either be stationary or moving at constant velocity.
 
  • #5
  • #6
Originally posted by Zimm
More seriously though, take the rock and tie some string to it, go away from anything you don't want broken and swing the rock around in an arc, feel the rock pull at your hand? that's you supplying a force so that the rock travels in a curve instead of a straight line...now watch the rock carefully becuase you're going to release it and watch it fly, not out away from your hand but perpendicular to the curve where you let it go, and it goes in a straight line.



COULD ANYONE EXPLAIN THIS A LITTLE BIT EASIER? CAUSE I'M GOING TO USE THIS EXAMPLE IN MY PROJECT.



THNX
 
  • #7
If you pick up a rock and throw it in the air, it will come back down to earth. It does this because there is an unbalanced force (gravity, frictional forces (from air resistance), etc.) acting on it.
 

1. What is Newton's 1st Law?

Newton's 1st Law, also known as the Law of Inertia, states that an object at rest will remain at rest and an object in motion will remain in motion at a constant speed and in a straight line unless acted upon by an external force.

2. What are some real-life examples of Newton's 1st Law?

Some common examples of Newton's 1st Law include a book sitting on a table (rest), a car coasting on a flat road (motion), and a ball rolling on a level surface without any external forces acting on it.

3. How does Newton's 1st Law relate to everyday experiences?

Newton's 1st Law explains why objects stay still or keep moving until a force is applied to them. For example, when riding a bike, you will continue moving forward until you apply the brakes to slow down or stop.

4. What is the role of inertia in Newton's 1st Law?

Inertia is the tendency of an object to resist changes in its state of motion. In Newton's 1st Law, inertia is the reason why objects remain at rest or in motion unless acted upon by an external force.

5. How does Newton's 1st Law differ from the other two laws of motion?

Newton's 1st Law deals with the concept of inertia, while the other two laws (2nd and 3rd) focus on the relationship between force, mass, and acceleration. Additionally, Newton's 1st Law applies to objects in a state of rest or constant motion, while the other two laws apply to objects experiencing changes in motion.

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