Physics · Basic concepts of rotational motion, moment of a force, torque, angular momentum, conservation of angular momentum and its applications
A swimmer while jumping into water from a height easily forms a loop in air, if
A swimmer while jumping into water from a height easily forms a loop in air, if
- A. He pulls his arms and leg in
- B. He spreads legs and his arms
- C. He keeps himself straight
- D. His body is so formed
Step-by-step solution
By pulling arms and legs in, the swimmer reduces his moment of inertia. Due to conservation of angular momentum, his angular velocity increases, making it easier to rotate and form a loop in the air.
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