(a) Calculate the force (in N) the woman in the figure below exerts to do a push-up at constant speed, taking all data t

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A Calculate The Force In N The Woman In The Figure Below Exerts To Do A Push Up At Constant Speed Taking All Data T 1 (46.56 KiB) Viewed 48 times

(a) Calculate the force (in N) the woman in the figure below exerts to do a push-up at constant speed, taking all data to be known to three digits. (You may need to use torque methods from a later chapter.) m = 56 kg CG F 0.86 m reaction 1.43 m (b) How much work (in J) does she do if her center of mass rises 0.260 m? J (c) What is her useful power output (in W) if she does 21 push-ups in 1 min? (Should work done lowering her body be included? See the discussion of useful work in Work, Energy, and Power in Humans.) W W