Question

A uniform rod of mass M and length 2l stands vertically on a rough horizontal floor and is allowed to fall. Assuming that slipping has not occured, evaluate the angular speed of the rod when the rod makes an angle of theta with the vertical. if the slipping occurs when the rod is at theta=30 degrees with respect to vertical, calculate the value of the coefficient of static friction.

A uniform rod of mass Mand length 21 stands vertically on a rough horizontal floor and is allowed to fall. Assuming that slipping has not occurred, evaluate(a) the angular speed o of the rod when the rod makes an angle of 0 with the vertical. (b)If the slipping occurs when the rod is at 0 = 30° with respect to vertical, calculate the value of the coefficient of static friction H,.

Answer 1

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Ellano) l 2 a) using energy conservation mill-econo) - 110 yage (1-6oo) = { (ghra ). 5 981-690) = 24 =) W = Angular Rpeed= 3(1-100) W2 39 (1- Cone Aul b) 9=30, N mg Goo for sing my Sunglino Ang I fr = MN= UN=ming yokges36-pung Sims o = yh (10) =) 9.86936 - Axos kini = (32954 1953), ) = M = (cat25 = (318786)/n) 4.122 -(07913)