Physics - W.E.P. Question with Solution | TestHub

PhysicsW.E.P.Work kinetic energy theoremEasy2 minPYQ_2020
PhysicsEasynumerical

A block of mass1 kgis released from the top of a rough incline havingμ = 1 3. The initial speed of the block is2 m s-1. The inclined plane has unknown length and has a spring of spring constantk = 1 N m-1connected at the base as in the figure. Find the maximum compression of spring. (answer in meter).

Answer:
2.00
Solution:

ma = mg sin 3 0 o - 1 3 mg cos 6 0 o

⇒  a = 0

by energy conservation



wmg + wfr + wspring =  Δ K.E.

wmg=wfr

-12kx2=0-12mv2x=mkv=2 m

Stream:JEESubject:PhysicsTopic:W.E.P.Subtopic:Work kinetic energy theorem
2mℹ️ Source: PYQ_2020

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