work due to spring (N.m)O a. -5.57о b. -6.68C. -4.45O d. -7.79O e. -2.23angular velocity in position (2) (rad/s)О а. 5.71O b. 6.85c. 4.57O d. 7.99O e. 2.28 A slender 12.7-kg rod can rotate in a vertical plane about a pivot at A. A spring of constant k= 121 N/m and of unstretched length 370 mm is attached to the rod as shown. Knowing that the rod is released from rest in position (1) (0 =0°), it has rotated through 90° to reach position (2) (e = 90°).400 mmK0=o200 mmB300 mm200 mm0=90

Answered: Image /qna-images/answer/4f3218d9-3cbb-401d-b1f5-43b0fc67910e.jpg

Answered: work due to spring (N.m) O a. -5.57 о…

work due to spring (N.m) O a. -5.57 о ь.-6.68 O C.-4.45 O d.-7.79 O e.-2.23 angular velocity in position (2) (rad/s) O a. 5.71 о ь. 6.85 O c. 4.57

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

2. A spring is hung vertically and an object of mass m attached to the lower end is then slowly lowered a distance d to the equilibrium point a. find the value of the spring constant if the magnitude of the displacement d is 2.0 cm and the mass is .55 kg b. if a second identical spring is attached to the object in parallel with the first spring, where is the new equilibrium point of the system? c. What is the effective spring constant of the two springs acting as one?
a sheep with a mass of 50 kg is hung on an animal scale system which consists of a helical spring of negligible mass. The stiffness (k) of the spring is 60 kN/m. During the hanging operation, the spring and the sheep are displaced vertically by 20 mm below the equilibrium position. draw a free body diagram and prove that the total length (L) of the scale system can be expressed as : L= (2mg/k) + L0, where L0 is the unstretched length of the spring. also determine the frequency of natural vibration of the system.
A baseball attachment that helps people with mobility impairments play T-ball and baseball is powered by a spring that is unstretched at position 2. The spring is attached to a cord that is fastened to point B on the 75-mm radius pulley. The pulley is fixed at point O , rotates backwards to the cocked position at 0 , and the rope wraps around the pulley and stretches the spring with a stiffness of k = 2000 N/m. The combined mass moment of inertia of all the rotating components about point O is 0.40 kg·m2. The swing is timed perfectly to strike a 145-gram baseball travelling with a speed of V0 = 10 m/s at a distance of h = 0.7 m away from point O. Knowing that the coefficient of restitution between the bat and ball is 0.59, determine the velocity of the baseball immediately after the impact. Assume that the ball is travelling primarily in the horizontal plane and that its spin is negligible.
Two blocks are attached by strings of negligible mass to a physical pulley with two radii R1=027 m and R2=042 m. The strings are wrapped around their respective radii so that the masses can move either up or down. The pulley has a moment of inertia Ipcm=0249 kgm2, and is supported by a bearing with negligible friction. If block 1 has a mass of m1=4.1 kg, block 2 has a mass of m2=1.14 kg, and the tension in the rope connecting block 1 to the pulley is T1p=31.11 N, what is the magnitude of the angular acceleration of the pulley?
Each arm of a Proell governor is 240 mm long and each 240 h = 190 rotating ball has a mass of 3 kg. The central load acting on the sleeve is 30 kg. The pivots of all the arms are 30 mm from the axis of rotation. The vertical height of the T. Tcos e governor is 190 mm. The extension links of the lower arms are vertical and the governor speed is 180 rpm when the sleeve is in the mid-position. Determine the lengths of the extension links (e) and tension in the upper 3 kg 240 B arms (T). 30 30 kg
AY19-20: QUESTION 3 A 5 kg rod BC is attached by pins to two uniform disks as shown in the figure. The mass of the large disk is 5 kg and that of the smaller disk is 1 kg. A spring with spring constant of 50 N/m is attached to the pivot joint at C, which is un-stretched at this given position. Knowing that the system is released from rest in the position shown, and the two disks roll without slipping, determine the velocity of the rod after the large disk has rotated through 90°. 50 mm 50 mm 100 mm B Figure 3
Two blocks, of masses m1 and m2, are connected to each other and to a central post by cords. They rotate about the post at a frequency of f (revolutions per second) on a frictionless horizontal surface at distances r1 and r2 from the post. 1) Derive an algebraic expression for the tension in the segment of the cord from the post to the block of mass m1. 2)Derive an algebraic expression for the tension in the segment of the cord from the block of mass m1 to the block of mass m2.
Two uniform bars AB and BC are pin-connected at points A, B, and C. Bar AB is massless (mAB = 0 kg) and has a length L = 1.5 m. Bar BC has a mass mBc = 2 kg and a length H = 1 m. C is a fixed point, a distance 8 = 0.2 m above the ground. A is on a uniform wheel of radius R = 0.8 m, a distance p from the center of the wheel. Note that p is less than R (R+ p = 8 + H). The mass of the wheel is mwheel = 6 kg. At the instant shown, AB is horizontal, BC is vertical and point A is at the vertical of point O. Bar BC is rotating clockwise at 3 rad/s with an acceleration of 1.5 rad/s² also in the clockwise direction. Assume that the wheel rolls without slipping. a) Find the force P applied to the wheel at that instant. b) Find the minimum coefficient of static friction required for the wheel to roll without slipping. L B H
A slender 12.7-kg rod can rotate in a vertical plane about a pivot at A. A spring of constant k= 121 N/m and of unstretched length 370 mm is attached to the rod as shown. Knowing that the rod is released from rest in position (1) (0 = 0°), it has rotated through 90° to reach position (2) ( e = 90°). 400 mm K -0=0 200 mm B 300 mm 200 mm 0=90 kinetic energy at position (1) (Joules) moment of inertia about the hinge (kg.m2) a. 0,8 O b. 0.97 c. 0.64 d. 1.13 O e. 0.32 work due weight (N.m) work due to spring (N.m) a. -5,57 b. -6.68 C. -4.45 d. -7.79 e. -2.23 angular velocity in position (2) (rad/s) О а. 5.71 b. 6.85 C. 4.57 d. 7,99 O e. 2.28 O o o C оо
Question: A massless and inextensible rope C is wound around both discs of mass m. Please note that disc A does not move in a vertical or horizontal direction but can only undergo rotational motion. The discs are released from rest. Given: m=10 kg, R=90 mm, 1 = ½*m*R² Find: Tension in the stationary rope AD. Answer should be: (FAD =118 N) Di (A A A C B R
A slender 12.7-kg rod can rotate in a vertical plane about a pivot at A. A spring of constant k= 89 N/m and of unstretched length 350 mm is attached to the rod as shown. Knowing that the rod is released from rest in position (1) (0 = 0°), it has rotated through 90° to reach position (2) (0 = 90°). 400 mm 0=0 200 mm 300 mm 200 mm 0=90 kinetic energy at position (1) (Joules) moment of inertia about the hinge (kg.m²) a. 0.8 о Б.0.97 c. 0.64 d. 1.13 е. 0.32 work due weight (N.m) www
Gears B and D are attached to a shaft which is supported by bearings at A and C if the diameters of the gears are 12 and 6 cm respectively, radial and tangential forces act on them as shown, neglecting the weight of the gears. gears as well as the friction of the bearings, if we know that the system is rotating with a constant angular velocity. Calculate the static equilibrium of the system X Z A 175 N 12 CM 110 N B C 40 cm 6 CM D 200 N 450 N 30 cm 20 cm