Define kinetic energy of an object derive is expression can kinetic energy of an object be negative give reason
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kinetic energy is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.
Kinetic energy is either zero or positive, never negative. This is because kinetic energy is defined as half an objects' mass multiplied by the square of its velocity. Since mass is a measure of matter, it can never be negative, and since velocity is squared, it is always positive.
Kinetic energy is either zero or positive, never negative. This is because kinetic energy is defined as half an objects' mass multiplied by the square of its velocity. Since mass is a measure of matter, it can never be negative, and since velocity is squared, it is always positive.
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