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Answer:
Definitions for Force:
1) Force is a push or pull
2) Force is the capacity to do work or cause physical change
3) Force= Mass times acceleration (F = ma)
4) A force is that which changes or tends to change the state of rest or motion of a body.
Examples:
For simplicity sake, all forces (interactions) between objects can be placed into two broad categories: contact forces, and forces resulting from action-at-a-distance.
Contact Forces include: frictional forces, buoyant forces, normal forces, and air resistance forces
Action-at-a-distance forces include: gravitation, electrostatic and magnetic forces.
Measuring Force:
Force is measured using either the English System of Measurements or the International System of Units (SI).
Common Units of Force
---SI: Newton (N) 1 N = 0.225 lb;
One Newton (N) of force is defined as the amount of force needed to accelerate 1 kilogram (kg) of mass at a rate of 1 meter per second squared (m/s2).
1 Newton = 1 kg m/sec2 (A kilogram is the amount of weight at which 1 N of force will accelerate at a rate of 1 m/s2.)
---English System: Pound (LB) 1 LB = 4.448 N
In English system of measurements, a slug is the amount of mass that 1 pound of force will accelerate at 1 ft/s2, and a pound mass is the amount of mass that 1 LB of force will accelerate at 32 feet/s2..
Answer:
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