SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The work-kinetic energy theorem says that the net work done by all the forces acting on an object is equal to the change in the object’s ____
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mechanical energy
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work
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momentum
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kinetic energy
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Explanation:
Detailed explanation-1: -According to work-energy theorem, change in kinetic energy of a particle is equal to the work done on it by the net force., i.e., W=F⋅S=21mv2.
Detailed explanation-2: -Kinetic Energy and Work-Energy Theorem The work-energy theorem states that the work done by all forces acting on a particle equals the change in the particle’s kinetic energy.
Detailed explanation-3: -The net work done on the object is equal to the change in the kinetic energy of the object. Wnet = Kf-Ki = ½m(vf2-vi2) = ∆K. This is called the work-kinetic energy theorem.
Detailed explanation-4: -The total work done on a particle is equal to the change in its kinetic energy.
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