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PROBLEM 17.32
Two uniform cylinders, each of weight W 14 lb and radius r 5 in., are connected by
a belt as shown. Knowing that at the instant shown the angular velocity of cylinder B is
30 rad/s clockwise, determine (a) the distance through which cylinder A will rise before
the angular velocity of cylinder B is reduced to 5 rad/s, (b) the tension in the portion of
belt connecting the two cylinders.
PROBLEM 17.32 (Continued)
PROBLEM 17.33
Two uniform cylinders, each of weight W 14 lb and radius r 5 in., are connected by
a belt as shown. If the system is released from rest, determine (a) the velocity of the
center of cylinder A after it has moved through 3 ft, (b) the tension in the portion of belt
connecting the two cylinders.
PROBLEM 17.33 (Continued)
PROBLEM 17.34
A bar of mass m 5 kg is held as shown between
four disks each of mass
m
2 kg and radius
r 75 mm. Knowing that the forces exerted on
the disks are sufficient to prevent slipping and
that the bar is released from rest, for each of the
cases shown determine the velocity of the bar
after it has moved through the distance h.
PROBLEM 17.34 (Continued)
PROBLEM 17.35
The 1.5-kg uniform slender bar AB is connected to the 3-kg gear B
which meshes with the stationary outer gear C. The centroidal radius of
gyration of gear B is 30 m. Knowing that the system is released from
rest in the position shown, determine (a) the angular velocity of the bar
as it passes through the vertical position, (b) the corresponding angular
velocity of gear B.
PROBLEM 17.36
The motion of the uniform rod AB is guided by small wheels of
negligible mass that roll on the surface shown. If the rod is released from
rest when
0,
determine the velocities of A and B when
30 .
PROBLEM 17.37
A 5-m long ladder has a mass of 15 kg and is placed against a house at an
angle 20 .
Knowing that the ladder is released from rest, determine the
angular velocity of the ladder and the velocity of A when 45 .
Assume
the ladder can slide freely on the horizontal ground and on the vertical
wall.
PROBLEM 17.37 (Continued)
