The bucket of a backhoe is the element AB of the four-bar linkage system ABCD. Assume that the points A and D are fixed and that, at the instant shown, point B is vertically aligned with point A, point C is horizontally aligned with point B, and point B is moving to the right with a speed vg = 1.9 ft/s. Determine the velocity of point C at the instant shown, along with the angular velocities of elements BC and CD. Let h = 0.66 ft, e = 0.46 ft, /= 0.9 ft, and w= 1.0 ft. (Include a minus sign if necessary.) พ UB C B D h te The angular velocity of element CD is The angular velocity of element BC is The velocity of point C is ( 1.900 | Â rad/s. (Round the final answer to four decimal places.) rad/s. (Round the final answer to three decimal places.) ) ft/s. (Round the final answers to three decimal places.)

An external drive system actuates the mechanism by applying a moment M at bearing D. At the instant 0 = 30°, the velocity of point C is 14 m (upward to the left) and the angular acceleration of link CD is 45 rad in the CCW direction. Determine the x-component of the velocity vector of point G in m at this instant. Consider L 4 metres. E B y M.

An external drive system actuates the mechanism by applying a moment M at bearing D. At the instant 0 = 55°, the magnitude of the velocity vector of point C is 19 m and the angular acceleration of link CD is 30 rad in the CCW direction. Determine the angular velocity vector of link CE (in L = 2 metres. rad :) at this instant. Consider E y +. • Ch

The figure shows a rigid link AB of length 2 m which rotates anticlockwise about a fixed point at A at a rate of 2 rad/s, but which is decelerating in its rotation at 1 rad/s². At the instance of time shown in the diagram, with the link AB at 60 degrees to the horizontal, what is the y-component of the absolute acceleration of point B? (The positive sense of the x and y directions are given by the axes in the diagram). O O O O O w = 2 rad/s a = -1 rad/s² 7.93 m/s2 Don't Know -7.93 m/s² 5.93 m/s2 -5.93 m/s² B 60⁰

THIS IS A SUPPLEMENTAL STUDY PROBLEM GIVEN AS AN EXTRA EXAMPLETHIS IS NOT A GRADED ASSIGNMENT

At the instant shown, an overhead garage door is being shut with point B moving to the left within the horizontal part of the door guide at a speed of 9 ft/s, while point A is moving vertically downward. Determine the angular velocity of the door and the velocity of the counterweight Cat this instant if L = 6 ft and d= 1.5 ft. (Round the final answers to four decimal places.) L B C floor The angular velocity of the door is k rad/s. The velocity of the counterweight Cis ft/s.

Find wAB and wBC in rad/s

At the instant θ = 40 ∘, the bottom A of the L = 13 ft ladder is slipping with velocity vA = -11 ft/s and acceleration aA = -6.5 ft/s2 .  (Negative sign for: clockwise rotation, left, and down motion). Determine the velocity of end B of the ladder?   Determine the ladder's angular velocity at the given instant?   Determine the ladder's angular acceleration?   Determine the acceleration of end B?

Question 1: In the mechanism shown in Figure the slider is moving to the right with a velocity of 1 m/sec. Determine the magnitude of the angular velocity of the link AB and BC. AR 45° D₁ A₂D 3 m C VAB 45° Vc B Van Vc B 1.5 m VBC с

Carry out the speed analysis of the following mechanism, obtaining the general expressions (for any position) for the angular velocity of the bar BD and the sliding speed of the collar P on the bar BD. The angular velocity of the bar AP is known. Assume that the position analysis has already been carried out. Also report the expressions for linear and angular velocity of collar P. 200 m 3