The chin-up is one exercise that can be used to strengthen


The chin-up is one exercise that can be used to strengthen the biceps muscle. This muscle can exert a force of approximately 800 N as it contracts a distance of 7.4 cm in a 75-kg male. How much work can the biceps muscles (one in each arm) perform in a single contraction?

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Compare this amount of work with the energy required to lift a 75-kg person 40 cm in performing a chin-up. How much is required?

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Physics: The chin-up is one exercise that can be used to strengthen
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