Use the following situation to answer questions 29-31. ders turning clockwise Th

Question

Use the following situation to answer questions 29-31. ders turning clockwise The figure below shows the bird view of four of different materials and same mass cyinn on a platform at a constant rate. 29. Rank the magnitude of the net force acting on the cylinder from largest to smallest. FP=R>R>F, a. 30 Rank the net work done on the cylinders through half a turn from largest to smallest 31. Assume that all cylinders are about to slide and that they do so at the same time, which one(s) of the following statements is/are true about the situation? a. The force acting on the cylinders at this moment is the maximum static friction and it points towards the center b. The force acting on the cylinders at this moment is the maximum static friction and it is tangential to the motion; c. The coefficient of static friction is equal to d. The coefficient of static friction is equal to .-rg , and or e. Cylinders as they slide will follow a curve path with an ever increasing radius rg

Explanation / Answer

29] A is correct, because F = mw^2 r

30] option b is correct, because work done in case of all will be zero as there is no change of KE.

31] a,c,e are correct. Because force is centripetal = umg = mv^2/r . so u = v^2/rg

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