Engineering Mechanics - DynamicsChapter 19Solution:Assume each roller is brought to the condition of roll withoutslipping. In time t, the number of rollers affected is v0t/d.Mcgsinθ()tFt−0=FMcgsin=Ftr12Mr2⎛⎝⎞⎠v0rv0dt⎛⎝⎞⎠=v02gsindMCM=Problem 19-34Two wheels AandBhave masses mA and mBand radii of gyration about their central verticalaxes of kAand kBrespectively. If they are freely rotating in the same direction at ωAand Βaboutthe same vertical axis, determine their common angular velocity after they are brought intocontact and slipping between them stops.Solution:mAkA2AmBkB2B+mAkA2mBkB2+=mAkA2AmBkB2B+mAkA2mBkB2+=Problem 19-35The Hubble Space Telescope is powered by two solar
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