Each time he does one pushup, Jose, who has a mass of 89kg, raises his center of mass by 25 cm.He completes an impressive set of 150 pushups in 5 minutes, exercising at a steady rate. ***I've tried solving for Part A and got 109.14 W. But it keeps saying I am wrong because, "It appears that you have not considered efficiency of the human body in your calculation. Recall the value of this efficiency." The efficiency is 25%...any help would be great!
