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What would the reaction force be on a cartridge being fired out of a rifle?

If there's constant air pressure against our bodies, then how come we don't get pushed around by it all the time?

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Action force- One of the pair of objects described in Newton's third law.

Reaction force- The force that is equal in strength and opposite in direction to the action force.

Interaction- A mutual action between objects where each object exerts and equal but opposite force on the other.

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This basically means that any force that is exerted on an object is also having its own force exerted back onto itself by the object it's initially pushing.

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For every action, there is an equal and opposite reaction.

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What is an object's acceleration if it has a mass of 5kg and acted upon by another object with a force of 20N?

What is an object's force if it has a mass of 25kg and is traveling at a constant rate of 35m/s/s?

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Force- A push or pull on an object, measured in Newtons.

Mass- Number of atoms or physical matter an object is composed of, measured in kilograms.

Acceleration- The rate of change of velocity of an object, measured in m/s/s.

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From this simple formula, you can find out the force (F = m * a), mass (m = f/a), and/or acceleration (a = F/m), of an object

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Force equals mass by acceleration, or better expressed in the mathematical formula, F = m(a)

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What would happen to a moving object if friction was never applied to it?

What if objects in motion didn't have inertia?

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Motion- The action or process of moving or being moved.

Inertia- An object's tendency to resist a change in motion.

Friction- A force that slows down moving objects.

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If the soccer ball didn't hit the wall, it would keep moving until it was completely stopped by another object or friction.

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Objects in motion stay in motion, and objects at rest stay at rest unless acted upon by an outside force