JEE Main 2019 — Circular Motion Question with Solution
From: JEE Main 2019 (Online) 11th January Morning Slot
Question
A body is projected at t = 0 with a velocity 10 ms–1
at an angle of 60o with the horizontal. The radius of curvature of its trajectory at t = 1s is R. neglecting air resistance and taking acceleration due to gravity g = 10 ms–2, the value of R is :
Choose an option
Show full solutionCorrect option: A
Correct answer
A2.8 m
Step-by-step explanation
vx = 10cos60o = 5 m/s
velocity after t = 1 sec.
vx = 5 m/s
vy = m/s = 10 5
an = = =
tan = = 2 = 15o
R =
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This is a previous-year question from JEE Main 2019, covering the Circular 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.