At the rhythmic gymnastics competitions, the athlete rolls the ball at a speed of 4 m / s to the second athlete, who is 7 meters from the first one. The second athlete must perform a somersault during the movement of the ball towards her and advance 1 meter towards the ball. Calculate the time after which the second athlete will catch the ball, and the necessary frequency of the flip?
Detailed solution with a brief record of the conditions, formulas and laws used in the decision, the conclusion of the calculation formula and the answer.
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