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A swimmer while jumping into water from a height easily forms a loop in the air, if |
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a) |
He pulls his arms and legs in |
b) |
He spreads his arms and legs |
c) |
He keeps himself straight |
d) |
None of the above |
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A swimmer while jumping into water from a height easily forms a loop in the air, if |
|||||||
|
a) |
He pulls his arms and legs in |
b) |
He spreads his arms and legs |
c) |
He keeps himself straight |
d) |
None of the above |
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(a) He decreases his Moment of inertia by this act and therefore increases his angular velocity |