Newton's Laws Of Motion

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or roll on one another.
Any change in an object’s speed is called acceleration. An increase in speed is called positive acceleration, while a decrease in speed is called negative acceleration, or deceleration. Acceleration can also mean a change in direction as well as in speed. A force is needed to change the direction of an object, so a change in force can also mean a change in direction as well as a change in speed. According to Newton’s Second Law of Motion, the change in direction of a moving object depends on the applied force.
The amount of acceleration depends on the object’s weight. A lighter object will accelerate more than a heavier object. Newton’s Second Law of Motion says that a given force accelerates a small mass more than it does a larger mass.
Finally, in Newton’s Third Law of Motion, every action is accompanied by a response, or a reaction. Action and reaction are involved in every motion. The force, mass, and acceleration involved in any motion are ...

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