Member AB is rotating at a constant speed of 4 rad/sec as shown. Find the angular velocity of bar BC at the instant shown. What is velocity of the point D at the center of bar BC? Bar BC is 3 ft in length. 20° 45%

1. In the mechanism on the right, link BC is horizontal at the instant 0 = 60°. If ®AB = 10 rad/s CCW, determine the angular velocities of links 250 mm BC and CD, @BC and ocD, at this instant. You @AB 30° may use any method. B C 300 mm 400 mm D

Plz answer this question Angular velocity of plate below = 50 rad/sec.. OB = 40 mm, OC = 30 mm. Determine VB, VC, and VCB.

The crank AB of the mechanism below rotates at 20 rad/s in the direction shown in the figure below. At the instant shown determine the velocity of point C.

At the instant shown, the shaft and plate rotates with an angular velocity of 19 rad/s and angular acceleration of 9 rad/s². (Figure 1) Figure X D 0.4 m B 0 0.4 m a 0.3 m < 1 of 1 0.6 m 0.2 m C 0.3 m Part A Determine the velocity of point D located on the corner of the plate at this instant. Enter the x, y, and z components of the velocity in meters per second to three significant figures separated by commas. ► View Available Hint(s) (UD), (UD)y, (UD) z = 6.51,4.89,1.63 m/s Submit Previous Answers ✓ Correct Here we learn how to determine the velocity of a point on a rigid body revolving with an angular acceleration about a fixed axis in three dimensions. Part B Determine the acceleration of point D located on the corner of the plate at this instant. Enter the x, y, and z components of the acceleration in meters per second squared to three significant figures separated by commas. ► View Available Hint(s) (ap)z, (ap)y, (ap)₂ = [Π ΑΣΦ | ↓↑ vec Submit Previous Answers X Incorrect; Try…

Q2/: The angular velocity of rod AB is 20rad/s clockwise. For the instant shown, determine: 2.1. The angular velocity of rod BD, 2.2. The velocity of the midpoint of rod BD. (O A 0.2 m 0.23 n 0.2 m (0,6 m

3. A body of a crane is moving and accelerating. The boom of the crane extends from crane horizontal to the ground (top view shown). The boom is both rotating and changing length, as shown. a. What are the radial and theta components of velocity of the far end of the boom (Point A) relative to the crane body (Point C)? b. Express velocity of Point A relative to Point C using i and j unit vectors. C. What are the radial and theta components of the acceleration of Point A relative to Point C? d. Express acceleration of Point A relative to Point C using i and j unit vectors. e. What is the velocity of Point A relative to the ground? f. What is the acceleration of Point A relative to the ground? g. What is the rate of change of the speed of Point A relative to the ground? (Hint: you are looking for aτ) ė = 0.8 rad/s Ö = 0.1 rad/s² A r = 5m r = 1.2 m/s r = 0 Y view from the top vc = 1.8 m/s ac = 1 m/s² X

30 For the mechanism shown, A WoA Won ' 20 vad ke clockwise. Determine the velocity of DA OA= 5" A6: 12" the sliden. slider 3"

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