Class NEET 2026 ALL Q #1922
KNOWLEDGE BASED 4 Marks 2026 NTA-RE-NEET-2026 MCQ SINGLE
Bob B of mass m at rest is hanging vertically from the ceiling via a massless string of length 10 m, as shown in the figure. Point mass A of mass m travelling horizontally with speed $10~ms^{-1}$ hits bob B elastically. The bob B rises h meter after the collision. Taking the acceleration due to gravity $g=10~ms^{-2}$ and neglecting the size of the bob, the value of h is: [Image Placeholder]
(A) 2.5
(B) 8
(C) 7
(D) 5
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Correct Answer: D

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