What must be the length of bar if twisted through an angle
A 20 mm diameter steel bar is to be used as a torsion spring. If the torsional stress in the bar is not to exceed 100 MPa when one end is twisted through an angle of 15degree, what must be the length of the bar?
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The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W = 58300 N. The lift force generated by the rotating blade makes an angle of 21.0° with respect to the vertical. Determi
If the torsional stress in the bar is not to exceed 100 MPa when one end is twisted through an angle of 15degree, what must be the length of the bar?
Can someone please check my answer for the following pdf, if its correct, can you then explain how I would get E(X) in this case; I under expected value in discrete case, but not continuous.
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