Physics - W.E.P. Question with Solution | TestHub
PhysicsW.E.P.Work kinetic energy theoremMedium2 minai-gemini
PhysicsMediuminteger
A particle of mass is attached to a light string of length . It is released from rest when the string is horizontal. When the string makes an angle of below the horizontal, what is the work done by the tension in the string from the initial position to this point, in Joules? (Take )
Answer:
0
Solution:
In circular motion, the tension force in the string always acts perpendicular to the instantaneous displacement of the particle. Therefore, the work done by the tension force is always zero, as , and , so . Thus, the work done by tension is .
Stream:JEESubject:PhysicsTopic:W.E.P.Subtopic:Work kinetic energy theorem
⏱ 2mℹ️ Source: ai-gemini
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