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When a man stands on a turn-table stretching with two equal loads in hand and rotates. Then he folds his arm. Which of the following statement is correct |
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a) |
Linear momentum is conserved |
b) |
Kinetic energy increases |
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c) |
Angular momentum increases |
d) |
Angular velocity increases |
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When a man stands on a turn-table stretching with two equal loads in hand and rotates. Then he folds his arm. Which of the following statement is correct |
|||
|
a) |
Linear momentum is conserved |
b) |
Kinetic energy increases |
|
c) |
Angular momentum increases |
d) |
Angular velocity increases |
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(b,d) M.I. decreases and angular velocity increases |