Physics - W.E.P. Question with Solution | TestHub
PhysicsW.E.P.Conservative force & potential energyMedium2 minQB
PhysicsMediumsingle choice
Two bars of masses and connected by a non-deformed light spring rest on a horizontal plane. The coefficient of friction between the bars and the surface is equal to . What minimum constant force has to be applied in the horizontal direction to the bar of mass in order to shift the other bar?
Options:
Answer:
A
Solution:
The bar starts shifting when the spring force reaches . For the minimum constant force, just reaches that extension with zero speed. Energy balance on :
Ans. (A)
Stream:JEESubject:PhysicsTopic:W.E.P.Subtopic:Conservative force & potential energy
⏱ 2mℹ️ Source: QB
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