20–31. The rod is attached to smooth collars A and B at itsends using ball-and-socket joints. Determine the speed of Bat the instant shown if A is moving at va = 8 m/s. Also,determine the angular velocity of the rod if it is directedperpendicular to the axis of the rod.VA = 8 m/s1mB1.5 m2 mх

The velocity of the collars are

Answered: 20–31. The rod is attached to smooth…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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*20–16. Gear A is fixed while gear B is free to rotate on the shaft S. If the shaft is turning about the z axis at w. = 5 rad/s, while increasing at 2 rad/s², determine the velocity and acceleration of point P at the instant shown. The face of gear B lies in a vertical plane. 80 mm S0 mm 160 mm
Vc=4.05 m/s. Determine the direction angle of the velocity of point C at this instant measured counterclockwise from the postive x axis. (Express answer in degrees to three significant figures)
Determine the velocity of piston B in m/s at the instant shown, If the crank OA rotates with an angular velocity of w = 59 rad/s. 0.6 m 0.3 m 30° B
*16–48. Determine the velocity and acceleration of the peg A which is confined between the vertical guide and the rotating slotted rod.
Q10. The platform is rotating about the vertical axis such that at any instant its angular position is = (C₁ · ³/2) rad, where C₁ is a constant and this time in seconds. A ball rolls outward along the radial groove so that its position is r = (C₂ · t³) m, where C₂ is another constant and t is again time in seconds. If the constants C₁ = 4.1 and C₂ = 0.06, determine the magnitude of the acceleration of the ball (in m/s²) when t 1.5 s. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Your Answer: Answer 0. r
The ends of the 0.63-m bar remain in contact with their respective support surfaces. End B has a velocity of 0.40 m/s and an acceleration of 0.47 m/s² in the directions shown. Determine the angular acceleration a (positive if counterclockwise, negative if clockwise) of the bar and the acceleration of end A (positive if up, negative if down). 28 105 Answers: a = aA i i 0.63 m B 0.274 0.196 -ag=0.47m/s² UB=0.40 m/s rad/s² m/s²
16-90. Due to slipping, points A and B on the rim of the disk have the velocities shown. Determine the velocities of the center point C and point D at this instant. Vy = 10 ft/s B 0.8 ft 45°. CN30° VA = 5 ft/s
16-73. If the slider block A is moving downward at va = 4 m/s, determine the velocity of point E at the instant shown. |во 300 mm 250 mm 400 mm VA = 4 m/s 300 mm 30°
υο VA W= A r v B CC A gear sits between two moving racks. If the top rack moves at a velocity of v₁ = 0.85 m/s to the left and the bottom rack moves at a velocity of VB = 0.3 m/s to the right, determine the velocity at the center of the gear, the magnitude of the angular velocity of the gear, and the distance to the ICZV from point B. The gear has a radius of r = 0.08 m. m/s Select an answer rad/s Select an answer VB BY UBC Engineering
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4. Rod AB is attached to collars at its ends by ball- and-socket joints. If the collar A has a velocity of VA = 3 ft/s. determine the angular velocity of the rod and the velocity of collar B at the instant shown. Assume the angular velocity of the rod is directed perpendicular to the rod. 4 ft 2 ft B 3 ft/s A 4 ft y

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