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Galileo was the first to say that an object will continue in a straight line at constant speed unless acted on by a force.

Newton's law of gravity and laws of motion were used to give a mathematical proof of the laws of planetary motion discovered by Kepler from measurements of the planets' positions done by Tycho Brahe at the end of the 16th century.

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What are some examples of outside force that would change an objects inertia?

Gravity Electro-magnetic force Direct impact or contact


How is a tractor affected by inertia?

Inertia is the tendency of an object at rest to stay at rest, or an object's tendency to stay in motion in a straight line until acted upon by an outside force. A tractor must overcome resting inertia to move forward and must overcome moving inertia to stop.


Where law of inertia exhibited?

Every where. Roll a ball on the floor. As soon as it leaves your hand it continues to roll in a straight line. The outside force, friction slows it down. A rock can sit on the ground for a long time until an outside force from someone picks up he rock, or kicks it. Shoot an arrow thru the air. It would continue in a straight line if gravity did not pull it down to earth.


How does gravity keep objects in motion around the sun?

Gravity, per say, doesn't. It's only a player in the game. With only gravity, things would slowly be sucked into the sun, like a black hole. So that's where the other team, inertia comes in. Inertia is Newton's first law of motion, stating that an object in motion will continue to stay in motion unless another outside force messes with it. And so we have two major forces, gravity and inertia, pushing on one another. Neither win, and as gravity wants to pull into itself and inertia wants to fly away in a straight line, we get a circular path for the object that most call, an orbit.


Why would a ball thrown in outer space continue to move in a straight line?

This is due to Newtons first law. Because their is no gravity the object will move in a straight line unless a outside force is applied to it. Such as the gravity of a near by planet/object.


What causes the body to resist a change in motion?

In regards to physics, INERTIA is the tendency of a body to resist motion or to remain at rest. However, INERTIA, unless acted upon by an outside force, can also be a body moving in a straight line to stay in the motion of a straight line. This question is an inappropriate use of copywrited material.


What is n object that will remain at rest until some force causes it to move and a moving object will continue acted by some outside forces?

Any and all matter.


What is the first law of mation?

The law of Inertia. An object at rest stays at rest and an object in motion will stay in motion in a straight line unless acted upon by an outside force.


Why does an air freshener move when a vehicle is turning?

three principles apply here, inertia, gravity and friction. The sudden turn changes the gravity of the object as it pulls less than a g of g force, then inertia takes over because an object in motion stays in motion until acted upon by an outside force and this force is friction because it will come to a stop.


What is the property of matter tat keeps a moving object moving in a straight line?

It's Newton's first law of motion: "An oject in motion will stay in motion (with the same velocity) until an outside force acts upon it and an object at rest will stay at rest until an outside force acts upon it."


What is Sir Isaac newtons first law of motion called?

Inertia An object in motion shall continue on in a straight line at the same rate inless disturbed by an outside force. An object at rest shall stay at rest unless disturbed by an outside force


What sentence could you use for inertia?

Inertia states that an object at rest will stay at rest unless acted on by an outside force.