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Answers
Answer:
In physics, 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 this kinetic energy unless its speed changes. The same amount of work is done by the body when decelerating from its current speed to a state of rest.
Answer:
To accelerate an object we have to apply force. To apply force, we need to do work. When work is done on the object, energy is transferred and the object now moves with a new constant speed. The energy that is transferred is known as kinetic energy and it depends on the mass and speed achieved.
Explanation:
Kinetic Energy is the energy possessed by the body by virtue of its motion”
Kinetic energy is a scalar quantity. Kinetic energy is completely described by magnitude alone.
The SI unit of kinetic energy is Joule which is equal to 1 kg.m2.s-2.