Home Physics System of Particles Rotational Motion Angular Momentum A swimmer while jumping into water from a he…
Physics System of Particles Rotational Motion Angular Momentum MCQ (Single Correct)

A swimmer while jumping into water from a height begins to rotate fastly in the air if

A
He pulls his arms and legs in
B
He spread his arms and legs
C
He keeps himself straight
D
None of the above

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Text Solution

Verified by Experts
The correct answer is:
A

Angular momentum remains constant, swimmer decreases his moment of inertia by forming a

loop which results in increase in angular velocity.

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