In Fig. 1, the three bearings arc all at the same elevation.(a) When all bearings are on s...

In Fig. 1, the three bearings arc all at the same elevation.

(a) When all bearings are on solid supports, find the value R2.

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(b) When the center bearing is 1 mm lower than the other two, find the value of R2.

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(c) Suppose the ccnter bearing is resting on an elastic support that could be represented by a spring of constant equal to 5200 N/mm. Find R2.

Figure 1