JEE Main 2021 · PhysicsMultiple choiceDiagram basedHardMulti-step

JEE Main 17 March 2021, Shift 2, Physics Q9

Question 9 of 90 in this shift, Physics question 9 of 30, Section A.

A sphere of mass 2 kg and radius 0.5 m is rolling with an initial speed of 1

\mathrm{ms^{-1}}

goes up an inclined plane which makes an angle of

30^\circ

with the horizontal plane, without slipping. How long will the sphere take to return to the starting point A ?

The figure, in words

An inclined plane rising to the right from point A at the lower left, with the angle between the incline and the horizontal line at A labelled 30 degrees.

(1) $0.60$ s
(2) $0.57$ sOfficial answer
(3) $0.52$ s
(4) $0.80$ s

Official answer

Option 2

NTA final key.

Chapter: System of Particles and Rotational Motion
Topic: No close match in our taxonomy
Idea tested: No close match in our taxonomy