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Before jumping in water from above a swimmer bends his body to |
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a) |
Increase moment of inertia |
b) |
Decrease moment of inertia |
c) |
Decrease the angular momentum |
d) |
Reduce the angular velocity |
|
Before jumping in water from above a swimmer bends his body to |
|||||||
|
a) |
Increase moment of inertia |
b) |
Decrease moment of inertia |
c) |
Decrease the angular momentum |
d) |
Reduce the angular velocity |
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(b) In doing so moment of inertia is decreased and hence angular velocity is increased |