JEE Main 2020 — Laws Of Motion Question with Solution
From: JEE Main 2020 (Online) 5th September Evening Slot
Question
A spaceship in space sweeps stationary
interplanetary dust. As a result, its mass
increases at a rate = bv2(t), where v(t) is its instantaneous velocity. The instantaneous acceleration of the satellite is :
increases at a rate = bv2(t), where v(t) is its instantaneous velocity. The instantaneous acceleration of the satellite is :
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Given = bv2(t)
In free space no external force so there in only thrust force on rocket.
Fthrust = v
Force on satellite =
M(t)a = – v (bv2)
a =
In free space no external force so there in only thrust force on rocket.
Fthrust = v
Force on satellite =
M(t)a = – v (bv2)
a =
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This is a previous-year question from JEE Main 2020, covering the Laws Of Motion 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.