By the method of this article, determine the angular velocity WAB (positive if counterclockwise, negative if clockwise) of link AB and the velocity vg (positive if up, negative if down) of collar B for the instant represented. The quantities wo = 2.32 rad/s and r = 270 mm. Answers: WAB= 44 00 VB= i i 2r rad/s m/s

For the mechanism in the image below, the end A of the bar is moving downward along the slotted guide with a constant velocity va = 2.1 m/s. If r = 0.5 m, determine the angular velocity W of bar AB when 0 = 38°. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point and proper unit. A A ω, α y В

Pravinbhai

At the instant shown in (Figure 1). rod AB has an angular velocity w AB = 2.4 rad/s and an angular acceleration AB= 10 rad/s². The collar at C is pin-connected to CD and slides over AB. Figure 60⁰° @AB AB 0.75 m D 0.5 m B 1 of 1 € 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. |Π|ΙΑΣΦΗΤΗ WCD= Submit Part B acd= 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. IVD ΑΣΦΗ Request Answer vec < Return to Assignment vec [w]) ? Provide Feedback rad/s pwo ? rad/s²

The system shown in the figure is composed of bar AB which is pin-supported at A and attached to bar BC. The end of bar BC is connected to the slider block C.  At the instant shown, the acceleration of point B is 1.125 m/s2 downward and the angular velocity of bar BC is 0.5625 rad/s counterclockwise. What is the angular acceleration of bar AB?

7. A locomotive is running at a constant speed of 100 km/h. The diameter of driving wheels is 1.8 m. The stroke of the piston of the steam engine cylinder of the locomotive is 600 mm. Find the centrip- etal acceleration of the crank pin relative to the engine frame. ( Ans. 288 m/s )