JEE Main 2020 — Gravitation Question with Solution
From: JEE Main 2020 (Online) 8th January Evening Slot
Question
A ball is dropped from the top of a 100 m high
tower on a planet. In the last before hitting
the ground, it covers a distance of 19 m.
Acceleration due to gravity (in ms–2) near the
surface on that planet is _____.
Enter your answer
Show full solutionCorrect answer: 8
Correct answer
8
Step-by-step explanation
Let time to travel 81 m is t sec.
Time to travel 100 m is t + sec.
81 = a t2
t =
And 100 = a
=
+ =
=
a = 8 m/s2
Time to travel 100 m is t + sec.
81 = a t2
t =
And 100 = a
=
+ =
=
a = 8 m/s2
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This is a previous-year question from JEE Main 2020, 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.