desirjeanpierre desirjeanpierre

20-02-2017
Physics

contestada

Suppose your mass is 50 kg,,Assume that your hands and arms support your weight and that in doing one push-up you elevate this weight through a total distance of 40 Cm .How many Push-ups would you need to do to expend 1 KJ of work??????

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Dave1357 Dave1357

20-02-2017

You will need to do about 5 push ups because 40 kg x 50 kg = 200kg. 1KJ/ 200 kg = 5 push ups

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