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Newton's first law:
Newton's first law:
An object at rest will stay at rest and an object in motion will continue to move in a straight line at a constant speed, if there is no resultant force acting on it.
An object at rest will stay at rest and an object in motion will continue to move in a straight line at a constant speed, if there is no resultant force acting on it.
Newton's second law:
Newton's second law:
An object will accelerate if there is a resultant force on it. The magnitude of its acceleration is proportional to the force and inversely proportional to its mass.
An object will accelerate if there is a resultant force on it. The magnitude of its acceleration is proportional to the force and inversely proportional to its mass.
𝚺F = ma a = 𝚺F / m
𝚺F = ma a = 𝚺F / m
Newton's third law:
Newton's third law:
When two object interact the force on the first object is equal in magnitude and opposite in direction to the force on the second object .
When two object interact the force on the first object is equal in magnitude and opposite in direction to the force on the second object .
F1.2 = - F2.1
F1.2 = - F2.1
Exercises
Exercises
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