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-1.8 m- A swimmer exerts an average horizontal backward force of 90 N with his arm during each 1.8 m long stroke. a) What is his work output (in Joules) in each stroke? b) Calculate the power output (in Watts) of his arms if he does 140 strokes per minute. Save 

          -1.8 m- A swimmer exerts an average horizontal backward force of 90 N with his arm during each 1.8 m long stroke. a) What is his work output (in Joules) in each stroke? b) Calculate the power output (in Watts) of his arms if he does 140 strokes per minute. Save
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University Physics with Modern Physics
University Physics with Modern Physics
Hugh D. Young 14th Edition
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-1.8 m- A swimmer exerts an average horizontal backward force of 90 N with his arm during each 1.8 m long stroke. a) What is his work output (in Joules) in each stroke? b) Calculate the power output (in Watts) of his arms if he does 140 strokes per minute. Save
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00:01 So if you have this swimmer you'll expect that perhaps if this is his hand, okay, this is the head and this is another hand, right? you'll expect that the distance between the strokes is 1 .8 meters correct and you're also told importantly here that the backward force f is 85 newton's now we need to find also the power put in watts of this arm see if it has 120 strokes a minute so it's it's it's quite a straightforward because work this okay...
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