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

PhysicsW.E.P.MiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

A body is dropped from a certain height above the surface of the earth. When it loses $U$ amount of its potential energy, it acquires a velocity $v$ . The mass of the body is

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Answer:

Solution:

Using the conservation of mechanical energy

$K_{i} + P_{i} = K_{f} + P_{f}$

$0 + P = \frac{1}{2} m v^{2} + (P - U)$

$\frac{1}{2} m v^{2} = U$

$m = \frac{2 U}{v^{2}}$

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

⏱ 2mℹ️ Source: PYQ_2020

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