1.State Newton’s second law of motion. Write its mathematical expression. How can you state first law from it?
2. State universal law of gravitation and give its mathematical expression. Name any two phenomena which were explained on the basis of this law.
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According to Newton's second law...Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object)Everyone unconsiously knows the Second Law. Everyone knows that heavier objects require more force to move the same distance as lighter objects.
However, the Second Law gives us an exact relationship between force, mass, and acceleration. It can be expressed as a mathematical equation: F=MA or FORCE = MASS times ACCELERATION
However, the Second Law gives us an exact relationship between force, mass, and acceleration. It can be expressed as a mathematical equation: F=MA or FORCE = MASS times ACCELERATION
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the 2nd question
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The rate of change of momentum of an object is proposnal to the apply unbalanced force in the direction of force.
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