UPSC NDA I 2024 General Ability Paper

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Question : 89 of 150

Marks: +1, -0

A metallic bob X of mass m is released from position A. It collides elastically with another identical bob Y placed at rest at position B on a horizontal frictionless table. The angle AOB is 30°.

How high does the bob X rise immediately after the

To the same height as that of position A on the other side in the same trajectory
To half the height as that of position A on the other side along the same trajectory
The same height at position A
It stops at position B

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