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

PhysicsW.E.P.MiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

A block of mass $m$ is stationary with respect to the wedge of mass $M$ moving with uniform speed $v$ on a horizontal surface. The work done by the friction force on the block as a function of time is

Options:

Answer:

Solution:

$f r = m g s i n θ$

Work done by $f r = - m g s i n θ c o s θ v t$

$= - \frac{m g s i n 2 θ}{2} (v \times t)$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:W.E.P.Subtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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