Question

3. The solid homogeneous cylinder is released from rest on the ramp. A steady wind force of 5 lb acts on the cylinder as it rolls or slips (to be determined) down the slope. The wind force acts through the mass center, G in a direction parallel to the slope, i.e., opposite to the frictional force, F W 20 lb 12" wind 5 Ib If 0 20°, H, 0.35 and 0.25 (a) Draw the freebody diagram (b) Determine the magnitude of the acceleration of the mass center G (c) Determine the magnitude of the friction force exerted by the ramp on the cylinder (c) Is the assumption of pure rolling valid? (d) Determine the minimum value of static frictional coefficient u required to avoid slipping 0.35 0

Answer 1

Hance inthe/) can will ocuun しし) Magnitude 9-1 684 +5 -20 41-241-loaro

Here a= acceleration of mass center G= 12.70 ft/s^2