Competitive ice skaters commonly perform single, double andtripleaxel jumps in which they rotate 1 1/2, 2 1/2, and 31/2revolutions, respectively, about a verticle axis whileairborne.For all these jumps, a typical skater remains airborne forabout0.70 seconds. Suppose a skater leaves the ground in an"open"position (e.g. arms outstretched) with a moment ofinertiaI0 and a rotational frequency f0 = 1.2rev/s,maintaining this position for 0.10 seconds. The skater thenassumesa "closed" position (arms brought closer) with moment ofinertiaI, acquiring a rotational frequency f,which ismaintinaed for 0.50 seconds. Finally, the skaterimmediatelyreturns to the "open" position for 0.10 seconds utnillanding. (A)Why is angular momentum conserved during the skater'sjump? Neglectair resistance. (B) Determine the minimum rotationalfrequencyf during the flight's middle section for theskater tosuccesfully complete a single and triple axel. (C) Showthat,according to this model, a skater must be able to reduce hisor hermoment of inertia in midflight by a factor of 2 and 5 inorder tocomplete a single and triple axel, respectively.