JEE Main 2019PhysicsGravitationHardMCQ

JEE Main 2019Gravitation Question with Solution

JEE Main 2019 (12 Jan Shift 1)

Question

A satellite of mass M is in a circular orbit of radius R about the center of the earth. A meteorite of the same mass, falling towards the earth, collides with the satellite completely inelastic. The speeds of the satellite and the meteorite are the same, just before the collision. The subsequent motion of the combined body will be:

Choose an option

Show full solutionCorrect option: A
Correct answer
AIn an elliptical orbit

Step-by-step explanation



2mvx=mv

vx=v2

Similarly vy=v2

Vnet=v22+v22=v2
As resultant velocity after collision is less than orbital velocity and it's direction is neither radial nor tangential , the combined mass will follow elliptical orbit

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About this question

This is a previous-year question from JEE Main 2019, covering the Gravitation chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.