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PROBLEM 16.F3
Two uniform disks and two cylinders are assembled as indicated. Disk
A weighs 20 lb and disk B weighs 12 lb. Knowing that the system is
released from rest, draw the FBD and KD for the whole system.
PROBLEM 16.F4
The 400-lb crate shown is lowered by means of two overhead cranes. Knowing
the tension in each cable, draw the FBD and KD that can be used to determine
the angular acceleration of the crate and the acceleration of the center of gravity.
PROBLEM 16.F5
A uniform 6 × 8-in. rectangular plate of mass m is pinned at A. Knowing the
angular velocity of the plate at the instant shown is
ω
, draw the FBD and KD.
PROBLEM 16.F6
Two identical 4-lb slender rods AB and BC are
connected by a pin at B and by the cord AC. The
assembly rotates in a vertical plane under the combined
effect of gravity and a couple M applied to rod AB.
Knowing that in the position shown the angular velocity
of the assembly is
ω
, draw the FBD and KD that can be
used to determine the angular acceleration of the
assembly and the tension in cord AC.
PROBLEM 16.F7
The 4-lb uniform rod AB is attached to collars of negligible mass
which may slide without friction along the fixed rods shown.
Rod AB is at rest in the position
θ
= 25° when a horizontal force
P is applied to collar A causing it to start moving to the left.
Draw the FBD and KD for the rod.
PROBLEM 16.F8
A uniform disk of mass m = 4 kg and radius r = 150 mm
is supported by a belt ABCD that is bolted to the disk at
B and C. If the belt suddenly breaks at a point located
between A and B, draw the FBD and KD for the disk
immediately after the break.
