JEE Main 2021 — Gravitation Question with Solution
From: JEE Main 2021 (Online) 27th July Morning Shift
Question
Suppose two planets (spherical in shape) in radii R and 2R, but mass M and 9M respectively have a centre to centre separation 8 R as shown in the figure. A satellite of mass 'm' is projected from the surface of the planet of mass 'M' directly towards the centre of the second planet. The minimum speed 'v' required for the satellite to reach the surface of the second planet is then the value of 'a' is ____________.
[Given : The two planets are fixed in their position]
[Given : The two planets are fixed in their position]
This question includes a diagram. The text above accompanies the figure.
Enter your answer
Show full solutionCorrect answer: 4
Correct answer
4
Step-by-step explanation
Acceleration due to gravity will be zero at P therefore,
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.