NCERT CLASS IX - Science Textbook
Chapter 11 - Work and Energy
Write an expression for the kinetic energy of an object.
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KE = 1/2 m v²
where m = mass of the body
v = instantaneous velocity of the body
Kinetic energy is a scalar quantity.
KE = p² / (2 m)
where p = magnitude of the momentum
change in the kinetic energy = work done on the body
= change in potential energy
where m = mass of the body
v = instantaneous velocity of the body
Kinetic energy is a scalar quantity.
KE = p² / (2 m)
where p = magnitude of the momentum
change in the kinetic energy = work done on the body
= change in potential energy
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