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Question8 The bicep curl is an exercise where you lift up a barbell with weights attached by bending of your arms. How much energy does it take to curl a barbell with a total weight of 69.9 lb if you bend your arms through 180° (straight down to straight up)? Assume your forearm length (elbow to hand)is 0.543 m, and the weight is at rest at the start and end of the motion. n 11

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Answer #1

The energy will be

E mq.」h-31.71 × 9.8 × 1.086 337.48J

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