3.12 The thin rod in Figure 3.43 always re-mains in contact with the leftmost cor-ner of the circular channel where r =R = 0.75m. At the configuration shownin Figure 3.43 the absolute angular speedof the rod is 1.6rad/s in the counterclock-wise direction. Find the velocity of pointA on the rod at this instant. (answer: themagnitude of the velocity is 2.4m/s.)R2mFigure 3.43gravity

Given: The radius of circular channel, R = 0.75 m

Answered: 3.12 The thin rod in Figure 3.43 always…

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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The electric fan is mounted on a swivel support such that the fan rotates about the axis at a constant rate of w_=1 rad/s and the fan blade is spinning at a constant rate w, = 54 rad/s. = 45° for the motion. (Figure 1) Figure 60: 1 of 1 > Part A Determine the I. y. and Z components of the angular velocity of the blade using scalar notation. Express your answers in radians per second to three significant figures separated by commas. (w)z. (w)y. (w)= = Submit Part B (a)z. (α)y. (α)₂ = Submit Request Answer Provide Feedback ΠΙΑΣΦ ΑΣΦΗ Π Request Answer Ivec ^ Determine the z. y. and Z components of the angular acceleration of the blade using scalar notation. Express your answers in radians per second squared to three significant figures separated by commas. ΔΙΑΣΦΩΤ vec 4 + ⒸE ? rad/s Ċ E ? rad/s²
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The bar shown in the figure is rotating in the counterclockwise direction with an angular velocity of w. Which of the following is the velocity of point B, If the velocity of point A is 20 m/s? A 0.4 m 0.2 m B 0.4 m- 0.4 m
A variable torque is applied to a rotating wheel at time t = 0 and causes the clockwise angular acceler- ation to increase linearly with the clockwise angular displacement 0 of the wheel during the next 30 revo- lutions. When the wheel has turned the additional 30 revolutions, its angular velocity is 90 rad/s. Deter- mine its angular velocity wo at the start of the inter- val at t = 0.
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4) As in the figure, in an amusement vehicle rotating in the amusement park, the center shaft rotates at a speed of n=7 rpm. Meanwhile, the child is moved with the position equations r = (2 sinθ + 5) m and z = (3 cosθ) m. Find the forces generated in the child in all three axes (r, θ, z). The weight of the child is m = 39 kg. It was θ=122 degrees at the time the photo was taken.
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The bar shown in the figure is rotating in the counterclockwise direction with an angular velocity of w. Which of the following is the velocity of point B, If the velocity of point A is 18 m/s? 0.4 m 0.2 m B -0.4 m -0.4 m
Pulley C has an inner hub which is fixed to its outer one and turns with it. At the instant wĄ = 7.5 rad/s, pulley A is given a constant angular acceleration α = 32 rad/s². When A rotates 18 revolutions, determine the following: a) Angular velocity we of pulley C b) Angular acceleration ac of pulley C c) magnitude of acceleration of point B on pulley C Wc = 8 WA αA ac = a = 50 mm rad/s rad/s² m/s² A 60 mm B 40 mm
The large (1) wheel in figure 1 is rotating around the fixed axis passing through point O with an angular speed w1 = 4rad / sec. The OA crank rotates around the fixed axis from point O with an angular speed woa = 2rad / sec. Find the center of velocity P and angular velocity w2 of the small (2) impellers moving in a plane. Also, if (OK) = R = 60cm, (AB) = r = 20cm, (AC) = 12cm, (AE) = 11cm, (2) find the velocities of the A, B, C, E and K points of the impeller and form Table 3. . Also show the velocity vectors of the points A, B, C, E and K on the figure.

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