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Physics - Gravitation Question with Solution | TestHub

PhysicsGravitationEnergy & PotentialMedium2 minPDF

PhysicsMediummultiple choice

Two bodies, each of mass $M$ , are kept fixed with a separation $2 L$ . A particle of mass $m$ is projected from the midpoint of the line joining their centres, perpendicular to the line. The gravitational constant is $G$ . The correct statement(s) is (are) :-

Options:(select one or more)

Answer:

B, D

Solution:

$U_{0} = - \frac{2 GM m}{L}$

$\frac{1}{2} m v_{e}^{2} + U_{0} = 0$

$v_{e} = 2 \frac{GM}{L}$

Only gravity acts, so total mechanical energy remains constant.

Hence B and D.

Stream:JEESubject:PhysicsTopic:GravitationSubtopic:Energy & Potential

⏱ 2mℹ️ Source: PDF

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