Problem 319 Cords are loop around a small spacer separating two cylinders each weighing 400 lb and pass, as shown in Fig. P-319 over a frictionless pulleys to weights of 200 lb and 400 lb .
Determine the angle θ and the normal pressure N between the cylinders and the smooth horizontal surface.
Solution 319
$400 \cos \theta = 200$
$\cos \theta = 0.5$
$\theta = 60^\circ$ answer
$\Sigma F_V = 0$
$N + 400 \sin \theta = 800$
$N + 400 \sin 60^\circ = 800$
$N = 453.59 \, \text{ lb}$ ← answer
Follow @iMATHalino
MATHalino