15.156 Four pins slide in four separate slots cut in a circular plate as shown. When the plate is at rest, each pin has a velocity directed as shown and of the same constant magnitude u. If each pin maintains the same ve- locity relative to the plate when the plate rotates about O with a constant counterclockwise angular velocity , determine the acceleration of each pin. Fig. P15.156

The 200-mm-radius disk rolls without sliding on the surface shown. Knowing that the distance BG is 160 mm and that at the instant shown the disk has an angular velocity of 9.2 rad/s counterclockwise and an angular acceleration of 2.6 rad/s² clockwise, determine the acceleration of A. 800 mm The acceleration of A is 200 mm B 1 m/s² →.

A straight rack rests on a gear of radius r= 3 in. and is attached to a block B as shown. Knowing that at the instant shown 8 = 20°, the angular velocity of gear D is 4 rad/s clockwise, and it is speeding up at a rate of 2.5 rad/s², determine the angular acceleration of AB and the acceleration of block B. The angular acceleration of AB is The acceleration of block B is rad/s² clockwise. (Round the final answer to three decimal places.) in./s2. (Round the final answer to one decimal place.)

Problem 16.137 At the instant shown in (Figure 1), rod AB has an angular velocity WAB = 3.0 rad/s and an angular acceleration AB = 10 rad/s². The collar at C is pin-connected to CD and slides over AB. Figure 60° @AB αAB 0.75 m с 0.5 m B 1 of 1 Part A WCD= Determine the angular velocity of rod CD at this instant. Express your answer in radians per second to three significant figures. Enter positive value if the direction of velocity is counterclockwise and negative value if the direction of velocity is clockwise. IVE ΑΣΦΑ ↓↑ vec Submit Part B αCD = Request Answer Submit Determine the angular acceleration of rod CD at this instant. Express your answer in radians per second squared to three significant figures. Enter positive value if the direction of acceleration is counterclockwise and negative value if the direction of acceleration is clockwise. [Π ΑΣΦ Request Answer ? vec rad/s ? < rad/s² 8 of 8 Review