Two discs of same moment of inertia rotating about their regular axis passing through centre and perpendicular to the plane of disc with angular velocities \omega_1 and \omega_2.They are brought into contact face to face coinciding the axis of rotation. The expression for loss of energy during this process is:- [NEET 2017]

Correct Answer is : 14I(ω1−ω2)2

NEET 2017 Physics and Chemistry

Question : 37 of 90

Marks: +1, -0

Two discs of same moment of inertia rotating about their regular axis passing through centre and perpendicular to the plane of disc with angular velocities ω1 and ω2.They are brought into contact face to face coinciding the axis of rotation. The expression for loss of energy during this process is:-

[NEET 2017]

1
4
I(ω1−ω2)2
I(ω1−ω2)2
1
8
(ω1−ω2)2
1
2
I(ω1+ω2)2

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