JEE PHYSICS MCQ: GRAVITATION

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Analyzing +4 | -1

A system consists of

{N}

identical particles of mass

{m}

placed rigidly on the vertices of a regular polygon with each side of length

\ell

. If

{K}_1

be the kinetic energy imparted to one of the particles so that it just escapes the gravitational pull of the system and there after kinetic energy

{K}_2

is given by to the adjacent particle to escape, then the difference

\left({K}_1-{K}_2\right)

View answer and explanation

Correct option: D

\frac{G m^2}{a}

Option D (

\frac{G m^2}{a}

) is correct because the difference in kinetic energies is equal to the gravitational potential energy difference between the last particle's interaction.

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. If the body is projected in a direction making an angle of

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v_e

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