Report copyright - 0DLQ 3KDVH ,, · Sol. From angular momentum conservation I I I 0 3 C C C 4 m Loss of kinetic energy 2 1 1 2 (1 3 ) 2 2 4 I I 2 1 1 2 2 2 4 I I 3 2 8 I Q.9 A helicopter is rising up
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