Write the vector expression for the acceleration a of the mass center G of the simple pendulum in both n-t and x-y coordinates for the instant when 8 = 49° if 0 = 1.88 rad/sec and 0 = 4.195 rad/sec². Answers: a = ( a = ( i i 4.7' In 8 en + i i + i et) ft/sec² j) ft/sec²

Write the vector expression for the acceleration a of the mass center G of the simple pendulum in both n-t and x-y coordinates for the instant when 8 = 49° if 0 = 1.88 rad/sec and 0 = 4.195 rad/sec². Answers: a = ( a = ( i i 4.7' In 8 en + i i + i et) ft/sec² j) ft/sec²

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

See similar textbooks

Similar questions

+ G In the above diagram, the wheel starts from rest and rolls without slipping. The force (you don't need the value) causes a constant angular acceleration of 7.112 rad/s2. The radius of the wheel is R - 0.392 m. What is the magnitude of the acceleration of the point at the top of the wheel at time t 1.400 s? This is the point at the outer edge directly above the center of gravity, Gwhere the force F connects to the wheel. Use units of m/s. Don't place units in your answer, 3 o
dynamics The three objects m were placed at the vertices of the equilateral triangle without mass. The force f is applied to them according to the figure. What is the acceleration of the center of the triangle? ans : a=f/3m
A load is raised 11 ft by the gears and wheel system below. Gear A is initially rotating at rest and accelerates uniformly to omega = 24 rpm in t= 10 sec and maintain then maintain this constant 24 rpm speed. The dimensions are rA= 1 in, rB= 9 in and rC=16 in. 2) After 10 sec, find the distance s2 in feet and in NC es needed to reach the 11 ft, find thetaC2(t), alphaA2, alphaB2 in rad/s^2, omegaA2(t), omegaB2(t) in rad/s, thetaA2(t), in rad and the distance s2 in ft that should be made to get to the 11 ft raising distance of the load. 3) Deduce the number of revolutions made by gear A and how long it will take, to raise the load up to 11 ft.
The slider P can be moved inward by means of the string S as the bar OA rotates about the pivot 0. The angular position of the bar is given by 0 = 0.4 +0.12t+ 0.06t³, where 0 is in radians and t is in seconds. The position of the slider is given by r = 0.8 0.1t 0.05t2, where r is in meters and t is in seconds. Determine and sketch the velocity and acceleration of the slider at time t = 2 s. Find the angles a and ß which v and a make with the posi- tive x-axis. S 0 Problem 2/144 رفع جك
The thin rectangular block is supported at its corners by small rollers resting on smooth horizontal surfaces. If b=0.5 m and h= = 0.3 m, calculate the magnitude of the angular acceleration of the block at the moment when the supporting surface at B is suddenly removed. Present your answer in rad/sec² using 3 significant figures. AC B
Q1. Member AB is rotating (about fixed point A) with angular velocity (@ = 1 rad/sec) and angular acceleration (a = 2 rad/sec?) and driving the link CD (rotating about fixed point D at constant velocity) as shown in figure. Select five right answers. (a) Tangential Acceleration (a:) of link AB will not be zero (b) Tangential Acceleration (a) of link AB will be zero D 450mm (c) Tangential Acceleration (a,) of link CD will not be zero 200 mm 100 mm 60 H (d) Tangential Acceleration (a,) of link CD will be zero (e) All points on link CB will have same linear velocity 0 All points on link CB will have same angular velocity Formula • Tangential acceleration of a rotating link -ra • Radial (normal) acceleration of a rotating link = v³ /r= wr velocity of a rotating Ink (v) = r.w (g) Angular acceleration (a) for link CD will be zero (h) Angular acceleration (a) for link CB will not be zero Q2. Magnitude of linear velocity of any point “H" located at the half of the length of a rotating link CB…
The thin rectangular block is supported at its corners by small rollers resting on smooth horizontal surfaces. If b = 0.5 m and h= = 0.3 m, calculate the magnitude of the angular acceleration of the block at the moment when the supporting surface at B is suddenly removed. Present your answer in rad/sec² using 3 significant figures. h B
The figure as shown below is a rigid body undergoing planar motion. The absolute tangential accelerations of the points R and S on the body are 150 mm/sec2 and 300 mm/ sec2 respectively in the directions shown. What is the angular acceleration of the rigid body? Al 10 mm 10 mm 90 mm (a) 1.66 rad/ sec2 (b) 3.33 rad/ sec2 (c) 5.00 rad/ sec2 (d) 2.50 rad/ sec2 In the mechanism ABCD shown in the given figure, the fixed link is denoted as (1), Crank AB as (2), rocker BD as (3), Swivel trunnion at C as (4). The instantaneous centre I41 is at (a) the centre of swivel trunnion. (b) the intersection of line AB and a perpendicular to BD to (c) Infinity along AC (d) Infinity perpendicular to BD. www
For my exam reviewer: (DYNAMICS) A flywheel has its angular speed increased uniformly from 18 rad/s to 75 rad/s in 80 s. If the diameter of the wheel is 3.5 ft, determine the magnitudes of the normal and tangential components of acceleration of a point on the rim of the wheel when t = 80s, the magnitude of the acceleration, and the total distance the point travels during the time period. Find: a.) tangential acceleration (in rad/s^2) b.) normal acceleration (in rad/s^2) c.) acceleration (in rad/s^2) *Do show full solution. Thank you so much.
x Incorrect. In the overhead view of the figure, five forces pull on a box of mass m = 3.3 kg. The force magnitudes are F = 11 N, F, = 19 N, F3 = 2.8 N, F4 = 15 N, and Fs = 4.3 N, and angle 04 is 34°. Find the (a) x-component and (b) y-component of the box's acceleration, and also give the acceleration as (c) a magnitude and (d) an angle relative to the positive direction of the x axis. (Note that the angle will be negative if it is below the horizontal.) (a) Number T2.9 Units (b) Number T-53.9 Units (c) Number UnitsT Units e to search 7:01 PM 会 ENG 4/4/2021 17 pgdn pause break prt sc insert delete %23 %, 4 9. backspace E R | ১২ 3.
Problem 1 A Mechanisms Enthusiast Club is using a rigid bar (length LAB = 18 in.) with wheels riding along horizontal and sloped (angle = 45°) surfaces to demonstrate rigid body acceleration. Point B is measured with video analysis software at the instant shown (ß = 30°) to be traveling at VB = 20 in/s to the right while slowing down at ag = 5 in/s². A Using vector math, determine the velocity and acceleration of point A. Ө B G LAB ав B VB
A wagon is moving in a straight line with constant acceleration az and its kinematics is measured with respect to inertial coordinates (X1, Y1). A ball inside the wagon is acted upon by a force F (components F; and F,) and gravity force Mg. The coordinate (X2, Y2) is moving with the wagon. Determine the acceleration of the ball measured in the (X2, Y2) coordinate frame. In other words, compute the acceleration of the ball relative to the wagon. Y, A M a. Y, X,