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

PhysicsW.E.P.MiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

The figure below shows an axe which has a massless handle of length $L$ and a blade of mass $M$ and radius $R$ . The man slowly raises the axe from the horizontal position to the vertical position by rotating it about its point $B$ . Find the work done by him on the axe during the process.

Options:

Answer:

Solution:

$∆ W = ∆ P$

Work done = change in potential energy

$= M g Δ h_{com}$

$= M g [L + R + \frac{4 R}{3 π}]$

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

⏱ 2mℹ️ Source: PYQ_2020

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