Assume that she moves up at a constant speed. The triceps muscle at the back of her upper arm has an effective lever arm of 1.75 cm, and she exerts force on the floor at a horizontal distance of 20.0 cm from the elbow joint. How much work does she do if her center of mass rises 0.240 m? What is her useful power output if she does 25 pushups in one minute?
Assume that she moves up at a constant speed. The triceps muscle at the back of her upper arm has an effective lever arm of 1.75 cm, and she exerts force on the floor at a horizontal distance of 20.0 cm from the elbow joint. How much work does she do if her center of mass rises 0.240 m? What is her useful power output if she does 25 pushups in one minute?
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Assume that she moves up at a constant speed. The triceps muscle at the back of her upper arm has an effective lever arm of 1.75 cm, and she exerts force on the floor at a horizontal distance of 20.0 cm from the elbow joint. How much work does she do if her center of mass rises 0.240 m? What is her useful power output if she does 25 pushups in one minute?
Transcribed Image Text:m = 50.0 kg
CG
w
0.90 m
1.50 m
reaction
F,
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