SSC
PHYSICS
Question
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Formula for kinetic energy
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KE = m*g*y
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KE =
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KE = F*d
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KE = W/t
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Explanation:
Detailed explanation-1: -Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2. If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.
Detailed explanation-2: -The fundamental reason why there is a half in the kinetic energy formula actually comes from special relativity from a “more complete” version of the kinetic energy formula. The brief explanation is that this kinetic energy formula of ½mv2 can be considered as an approximation of special relativity.
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