2. Ann performs three different dives and rotates through the same number of rev

Question

2. Ann performs three different dives and rotates through the same number of revolutions in the same amount of time in all three dives. In all the dives, Ann’s positions at takeoff and just before water entry are identical layout positions. In dive 1, she is in a layout position in midflight. In dive 2, she is in a tuck position in midflight. In dive 3, she is in a pike position in midflight. a. In which dive does Ann have the largest angular momentum about the transverse axis? b. In which dive does Ann have the smallest angular momentum about the transverse axis? c. In which dive will Ann be rotating the fastest about the transverse axis just before water entry? d. In which dive will Ann be rotating the slowest about the transverse axis just before water entry?

Explanation / Answer

PART A)

Maximum angular momentum of body is when it is in LAYOUT position

PART B)

Minimum angular momentum when it is in TUCK position

PART C)

it is fastest when angular momentum is minimum so it is TUCK position

PART D)

it is fastest when angular momentum is maximum so it is LAYOUT position

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