The body is made of slender rod and rotates about a fixed axis through point O. If d = OA = 3 ft and r = 1 ft, and at the instant shown w = 4 rad/sec and α = 3 rad/sec², the magnitude of acceleration of point B on the rod at that instant is most nearly A. 0.66 ft/sec² B. 3.85 ft/sec² C. 7.76 ft/sec² D. 9.10 ft/sec² E. 14.8 ft/sec² F. 17.1 ft/sec² G. 21.7 ft/sec² H. 37.9 ft/sec² I. 47.1 ft/sec² J. 58.7 ft/sec² 0 ω, α d B A

The bent rod rotates about an axis connecting points A and E. All bends in the rod are 90° angles, and the given dimensions are h=21 cm, / = 14.5 cm, d = 21cm, and b = 7.6 cm. Express all your answers using the component system shown. If, at the instant shown, the rod is rotating with a constant angular speed of 26 rad/s and the rotation is counterclockwise as viewed from A looking toward E, determine the velocity and acceleration of point C. (Round the final answers to four decimal places. Include a minus sign if necessary.) The velocity of point Cisc The acceleration of point C is ac = Â) cm/s. k)cm/s²

4. 4) The hydraulic cylinder D extends, moves the rigid rod ABC, and causes the collar A to move with velocity and acceleration both to the left. If the dimensions 1 = 1.1 ft, and 2 = 2.3 ft, VA = 4.7 ft/s, aa = 2.7 ft/s², and the angle 0 = 25°, determine the angular acceleration (in rad/s2) of rod ABC. Negative sign must be included if the angular acceleration is clockwise. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. %3D 12 D а Your Answer: Answer

The piston of the hydraulic cylinder gives pin A a constant velocity v = 2.4 ft/sec in the direction shown for an interval of its motion. For the instant when 0 = 59°, determine i, ř, 0, and Ö where r = OA. A. 5.3" Answers: ft/sec ft/sec? rad/sec = rad/sec2