Solution Found!
swimmer shown in Figure 7.44 exerts an average horizontal
Chapter 1, Problem 56PE(choose chapter or problem)
swimmer shown in Figure 7.44 exerts an average horizontal backward force of 80.0 N with his arm during each 1.80 m long stroke. (a) What is his work output in each stroke? (b) Calculate the power output of his arms if he does 120 strokes per minute.
Questions & Answers
QUESTION:
swimmer shown in Figure 7.44 exerts an average horizontal backward force of 80.0 N with his arm during each 1.80 m long stroke. (a) What is his work output in each stroke? (b) Calculate the power output of his arms if he does 120 strokes per minute.
ANSWER:Step-by-step solution Step 1 of 4 The formula to find the work is, Here is the work done, is the force and is the displacement in the direction of applied force. (a) The output work by a swimmer in each stroke who exerts an average horizontal backward force each stroke is Therefore, the output work by the swimmer in each stroke is .