Suppose a 51.5-kg woman does 50 deep knee bends in which her center of mass is lowered and raised 0.385 m. (She does work in both directions) What is her average power consumption, in watts, if she does this in 2.95 min?

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A: Solution:   Given Values,

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A: Mass of insect (m) = 10 g = 0.01 kg weight of insect (w) = m×g = 0.01×9.8= 0.098 N Applied force (F)…

Q: (a) Calculate the energy in kJ used by a 55.0-kg woman who does 50 deep knee bends in which her…

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Q: power

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Q: Assume that she moves up at a constant speed. The triceps muscle at the back of her upper arm has an…

A: Solution:   Given Values,   Mass(M)=50 Kgdistance(d)=0.240 mtime (t)=1 min=60 sec

Q: An advertisement claims that a(n) 1600 kg car can accelerate from rest to 26 m/s in 8.4 s. Given:…

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Q: Lamar Gant, U.S. powerlifting star, became the first man to deadlift five times his own body weight…

A: the force due to gravity can be expressed as F=mg=300 lb9.8 m/s2=300 lb×0.4536 kg1 lb9.8…

Q: Lamar Gant, U.S. powerlifting star, became the first man to deadlift five times his own body weight…

A: Given,

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Q: A 55-kg marathon runner runs up the stairs to the top of Taguig’s 318-m Grand Hyatt Manila, the…

A: Mass of the runner M=55 kg The height reached h=318 m The time taken t=20 minutes=20×60 s=1200 s…

Q: work done by F

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Q: If a 1300 kg car can accelerate from 30 km/h to 65 km/h in 4.0 s , how long will it take to…

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