Problem 104
A young girl sits at the edge of a dock by the bay, dipping her feet in the water. At the instant shown in Figure 1144, she holds her lower leg stationary with her quadriceps muscle at an angle of 39with respect to the horizontal. Use the information given in the gure, plus the fact that her lower leg has a mass of 3.4 kg, to determine the magnitude of the force, exerted on the lower leg by the quadriceps.
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Lectures 4 and 5 Inclined Planes (straight and frictionless) a = *sinθ θis the angle of inclination Turning Point Means v = 0 s m Velocity minimums and maximums → a = 0 s2 Unit Vectors A = (magnitude, angle) Or i x component (magnitude 1) j = y component (magnitude 1) k = z compo
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Chapter 11, Problem 104 is Solved
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