The leg and cast in the figure below weigh 238 N(w1). Determine the weight w2 and the angle a needed so that no force is exerted on the hip joint by the leg plus cast. w2 = N a = ∘
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The leg and cast in the figure below weigh . Determine the weight and the angle needed so that no force is exerted on the hip joint by the leg plus cast.
![A model airplane of mass m = 0.750 kg flies with a speed of v = 35.0 m/s in a horizontal circle at the end of a 60.0 -m-long control wire as shown in the figure below. a b The forces exerted on the airplane are shown in figure on the right; the tension in the control wire T→, the weight mg→, and aerodynamic lift force F→L that acts at θ = 20.0∘ to the left of the +y-axis, as shown. The tension force T― makes an angle of θ = 20.0∘ below the horizontal, as shown. Calculate (a) the tension in the control wire [20 pts] and (b) the lift force FL [5 pts].](https://www.doubtrix.com/uploads/editor/6587265815GiHjvresbU.jpg)
