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- The kinetic energy of an object is the energy that it possesses due to its motion.
- It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.
- Having gained this energy during its acceleration, the body maintains its kinetic energy unless its speed changes.
- The same amount of work is done by the body in decelerating from its current speed to a state of rest.
What is acceleration?
Acceleration is the rate of change of the velocity of an object with respect to time. Accelerations are vector quantities (in that they have magnitude and direction).
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