Chapter 16, Problem 142P

Bar AB is pinned to the fixed support at A, and the collar B is pinned to the bar at its opposite end. The bar CD can slide freely through the collar at B. At the instant shown, bar AB is horizontal, /= 1.2 m, s = 1.07 m, 0 = 60°, and wAB= 40 rad/s. If ªäß = 21 rad/s² at the instant shown, determine the angular velocity and angular acceleration of the bar CD. WAB αAB с. B The angular velocity of the bar CD is The angular acceleration of the bar CD is k rad/s. k rad/s².

3.0 m/s relative to the bar as shown. The distances are L = 2.97 m and d 0.82 m The small collar A is sliding on the bent bar with speed Simultaneously, the bar is rotating with angular velocity w 1.34 rad/s about the fixed pivot B. Take the x-y axes to be fixed to the bar and determine the Coriolis acceleration acor of the slider for the instant represented. Interpret your result. BC Answer: acor =( | i ii j) m/s2

Determine the angular acceleration( of the 100kg slender rod at the instant shown. The bar has O velocity and 0 angular velocity at this instant. 60ON

Please solve this using scalar analysis by getting the scalar components at the x and y direction and not by using i-j-k

If the compact disc is spinning at a constant angular rate θ˙ = 445 rev/min, determine the magnitudes of the accelerations of points A and B at the instant shown. Determine the magnitudes of the velocities of points A and B.

The wheel of radius R rolls without slipping, and itscenter O has an acceleration aO. A point P on the wheelis a distance r from O. For given values of aO, R, and r,determine the angle θ and the velocity vO of the wheelfor which P has no acceleration in this position.

The center O of the disk has the velocity and acceleration shown in the figure. If the disk rolls without slipping on the horizontal surface, determine the velocity of A and the acceleration of B for the instant represented. Assume a = 5.0 m/s², v = 3.0 m/s, b = 0.2 m, 0 = 45% a Answers: A VA= (i ag= (i b B b V i+i ¡+ i L--x j) m/s j) m/s²

Bar BC rotates about the fixed pivot B with constant angular velocity w = 3 rad/s. Pin A is fixed to bar OA, which rotates about a fixed axis through point O, and is engaged in the slot of member BC. If at the instant presented, 0 = 35°, calculate the angular velocity and angular acceleration of bar OA for this instant. Use d = 0.3 m and l = 0.6 m. (wOA = 3.94 rad/s CW, ao₁ = 3.64 rad/s² CCW) d A l B Ꮎ 3

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