Answer to Question #249313 in Physics for Hannah

Question

Force vs Positive Shortening velocity graph: all on the first graph

Note: force in N is the y-axis and velocity is the x-axis with absolute values for all

Muscle 1 has 1,500 N and decreasing slope that reaches 1.85 m/s

Muscle 2 has 750 N and decreasing slope reaches 1.85 m/s

Muscle 3 has 1,500 N with decreasing slope that reaches 0.85 m/s

Muscle 4 has 750 N with decreasing slope that reaches 0.85 m/s

Power vs Positive Shortening Velocity graph: all begin at origin (0,0)

Muscle 1 has the greatest increased power of approx 375W at 0.75m/s then decreases back to 0 Watts at 1.85 m/s

Muscle 2 has an increase in power of 190W at 0.75m/s then decreased back to 0 Watts at 1.85 m/s

Muscle 3 has an increase in power of 190 W at 0.25 m/s with a decrease of 0 watts at 0.85 m/s

Muscle 4 has the smallest increase in power of 95 Watts at 0.25 m/s with decrease 0 Watts at 0.85 m/s

1.a) Which muscle(s) of these four is (are) the longest at resting length? Why?

b)  What is the resting length of muscle 2? Explain.

Answer 1

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