irai, a 50 kg figure skater, lands on the ice her feet after landing the triple axel and immediately jumps up again to perform a double toe-loop. The instant before her skates first touch the ice after the triple axel, her vertical velocity is 3 m/s downward. Her velocity is 2 m/s upward when her skates leave the ice for the second jump, 0.8 s later. (a) What is the vertical impulse exerted on Mirai during the 0.8 s she is in contact with the ice between the two jumps? (b) What is the average net vertical force exerted on Mirai during this 0.8 s? (c) What is the average reaction force exerted upward by the ice on Mirai during the 0.8 s?

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