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

PhysicsW.E.P.Work kinetic energy theoremMedium2 minQB

PhysicsMediuminteger

A block of mass 1 kg is pulled along the curve path ACB by a tangential force as shown in figure. The numerical value of work done by the frictional force when the block moves from A to B is x Joule then find x. (Block is pulled very slowly), take $g = 9.8 ms^{- 2}$ .

Answer:

Solution:

Work done by friction $== \int F \cdot ds = - \int_{0}^{π} μ mg cos θ \frac{dx}{c o s θ} = - μ mgx$

Stream:JEESubject:PhysicsTopic:W.E.P.Subtopic:Work kinetic energy theorem

⏱ 2mℹ️ Source: QB

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