Chapter 20, Problem 35P

End A of the 3.6-ft link has a velocity of 3.7 ft sec in the direction shown. At the same instant, end B has a velocity whose magnitude is 4.4 ft/sec as indicated. Find the angular velocity w of the link in two ways. The angular velocity of the link is positive if counterclockwise, negative if clockwise. A VA = 3.7 ft/sec 40° Answer: w= 3.6' B B VB = 4.4 ft/sec rad/sec

The disk has an angular velocity of 8 rad/s and is increasing at the rate of 5 rad/s' about its Z- axis and the yoke AB has a constant angular velocity w = 3 rad/s about its shaft as shown. Simultaneously the entire assembly revolves about the fixed X-axis with constant velocity o, = 5 rad/s. Determine the velocity and acceleration of point F on the disc for an instant shown in the figure. Also find angular velocity and angular acceleration of the disc. 20 cm 15. 30 cm 30 cm 30 cm N 20 cm

The end A of the cord is pulled down with a velocity of VA = 9 m/s. At the instant shown, determine: 1. The angular velocity of the spool 2. The magnitude of the velocity of point C located on the outer rim of the spool. Select one: A. ω=36 rad/s and VC = 20.12 m/s B. ω=12 rad/s and VC = 6.71 m/s C. ω=8 rad/s and VC = 4.47 m/s D. ω=4 rad/s and VC = 2.24 m/s

Bar BC of the linkage slides in the collar D. If bar AB is rotating clockwise with constant angular velocity of 12 rad/s, determine the angular velocity of BC when it is in the horizontal position shown.

150mm The slider block has a velocity of 5 m/s in the direction shown. The wheel rotates in the vertical plane about the fixed axis at C. Determine: 400 mm (a) the magnitude and direction of the angular velocity of the wheel at this instant, and (b) the magnitude and direction of the angular velocity of link AB at the instant shown. B VB = 5 m/s

The input crank link with a radius of 80 mm turns with a constant angular velocity c = 4 rad/sec and causes the slider collar A to oscillate back and forth along the fixed shaft. Determine the velocity of the collar A and the angular velocity of the rigid-body link AB as the input crank link crosses the vertical position as shown in Figure 2. Y-- 300 mm Figure 2. B. 712 40 mm Wo ZI 100 mm -80 mm 120 mm --4

At the instant shown on the right, the wheel rotates about the fixed axis C with clockwise angular velocity of w = 8 rad/s and a clockwise angular acceleration of 16rad/s^2. The point B, located at the distance of r = 15cm form the center is attached to the bar AB, which has a length of L = 50cm. The slider A is constrained to move horizontally. What is the speed and acceleration of the slider A?

The system shown is composed of equal-length bars (L=0.20m). At the instant shown, the velocity of the midpoint of bar DC is 2m/s directed to the right. A. Identify the type of motion of each bar. B. Determine the angular velocities of each bar.

Arm AB has a clockwise angular velocity ωAB while the ring gear R has a counterclockwise angular velocity ωR. Using the Instantaneous Center (IC) Method, determine (a) the angular velocity (in rad/s) of gear B and (b) the velocity (in cm/s) of gear tooth D at the instant shown. Also, (c) illustrate the location of each rigid body’s instantaneous center. Utilize the following given:s = 13.5 cmrB = 6 cmωAB = 0.55 rad/sωR = 0.16 rad/s