A 70 kg student consumes 2500 Cal each day and stays the same weight. One day, he eats
Chapter 11, Problem 47(choose chapter or problem)
A 70 kg student consumes 2500 Cal each day and stays the same weight. One day, he eats 3500 Cal and, wanting to keepINT from gaining weight, decides to "work off' the excess by jumpingup and down. With each jump, he accelerates to a speed of3.3 m/s before leaving the ground. How many jumps must hemake? Assume that the efficiency of the body in using energy is25%.
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