GATE PH · 2026 · PH
Question 65: Lagrangian Formulation
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Question 65
PHNAT2 marksNeeds review
A 15 cm long scale is held horizontally with one of its ends on the edge of a 1 m high table and the other end resting on one’s index finger. As the finger is removed (see figure below), the scale starts rotating about its end on the table. After 0.1 s, during which it has rotated by a negligibly small angle but has gained a rotational speed as it leaves the table and falls vertically towards the ground. When its centre of mass has fallen by 0.5 m, it has rotated by an angle
. The value of
in degrees (rounded off to one decimal place) is _____(
m.s
) 
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2026PH
GATE PH 2026 · Paper 1
Physics · Original paper archive
- Section
- Physics
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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