JEE Main 2021 — Gravitation Question with Solution
JEE Main 2021 (31 Aug Shift 1)
Question
The masses and radii of the earth and moon are and respectively. Their centres are at a distance apart. Find the minimum escape velocity for a particle of mass to be projected from the middle of these two masses :
Choose an option
Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
On conserving mechanical energy. The initial total energy is equal to final total energy,
.
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Gravitation chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2021, 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.