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

PhysicsW.E.P.MiscellaneousMedium2 minPYQ_2020

PhysicsMediumsingle choice

The bob of a swinging seconds pendulum (one whose time period is $2 s$ ) has a small speed $v_{0}$ at its lowest point. Its height from this lowest point $2.25 s$ after passing through it is given by

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Solution:

Hint: $T = 2$ sec. at $t = T + T /8$ $t = T + T /8 v = A ω cos ω t = v_{0} / 2$ By Mechanical energy conservation: $(\frac{v _{0}}{2})^{2} = v_{0}^{2} - 2 g h h = \frac{v _{0}^{2}}{4 g}$

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

⏱ 2mℹ️ Source: PYQ_2020

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