For the circular thin plate with a square hole as shown in the image below, its radius R = 0.42 m and the side of the square /= 0.15 m, and the material has a mass per unit area of 15 kg/m2. If at the instant shown, it is subjected to a force P= 47 N, and has a counterclockwise angular velocity of w = 2.1 rad/s, determine the angular acceleration (in rad/s?) of this plate. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Take g = 9.81 m/s². R 4 3 Your Answer: Answer

For the circular thin plate with a square hole as shown in the image below, its radius R = 0.42 m and the side of the square /= 0.15 m, and the material has a mass per unit area of 15 kg/m2. If at the instant shown, it is subjected to a force P= 47 N, and has a counterclockwise angular velocity of w = 2.1 rad/s, determine the angular acceleration (in rad/s?) of this plate. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Take g = 9.81 m/s². R 4 3 Your Answer: Answer

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter1: Introduction To Statics

Section: Chapter Questions

Problem 1.47P: A rifle at A is fired at a target at B. If the speed of the bullet is 1400 ft/s, determine the...

See similar textbooks

Similar questions

For the circular thin plate with a square hole as shown in the image below, its radius R = 0.48 m and the side of the square /= 0.21 m, and the material has a mass per unit area of 12 kg/m2. If at the instant shown, it is subjected to a force P = 38 N, and has a counterclockwise angular velocity of W = 2.6 rad/s, determine magnitude of the support reaction at point O at this instant. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point, and proper unit. Take g = 9.81 m/s?. R P
For the circular thin plate with a square hole as shown in the image below, its radius R = 0.32 m and the side of the square /= 0.18 m, and the material has a mass per unit area of 12 kg/m². If at the instant shown, it is subjected to a force P = 30 N, and has a counterclockwise angular velocity of W = 4.2 rad/s, determine magnitude of the support reaction at point O at this instant. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point, and proper unit. Take g = 9.81 m/s². R @ Your Answer: Answer units P
Two flywheels are pinned to opposite ends of a metal bar. The smaller flywheel has a mass of 40 kg and a radius of 0.25 m. The larger flywheel has a mass of 275 kg and a radius of 1.75 m. The bar has a mass of 2 kg and a length of 3 m. A wooden plate acts as a ripcord by temporarily pressing it against the flywheels and rapidly translating it to the left at v = angular velocity of 25 rad/s and the large flywheel has an angular velocity of 3.5714285714286 rad/s. The flywheel-bar assembly is then set on frictionless ice such that the axes of rotation are perpendicular to the ice surface. 6.25 m/s. The plate is removed when the small flywheel has an The flywheel pins have Hk = 0.05, which eventually causes the flywheels to stop spinning relative to the metal bar. Angular momentum is conserved, so the whole assembly continues spinning as a rigid body about the center of mass. What is the final angular velocity of the assembly? rad/s. The flywheels and bar rotate about their combined center…
Please answer all
In the system given in the figure, the piece consisting of m1 and m2 masses rotates counterclockwise with an angular speed of 5 rad / s. It is known that m1 = 300 gr and m2 = 170 gr.The angle made by the mass m1 with the X axis is 100degree, while the angle made by the m2 mass with the X axis is 45degree.And The distances of the m1 and m2 masses to the center of rotation are given as 0.5 m and 0.3 m, respectively. a)Find the centrifugal force of the masses m1 and m2 separately in N.? b)Find the total centrifugal force on the part?
The bar AB is uniform and has a mass of 50.0 kg. At the moment shown, the rod has an angular velocity of 4.00 rad/s and spring is stretched by 0.30 m. The force constant of the spring is 25.0 N/m.a) Determine whether or not the bar will reach the horizontal position.b) If the bar becomes horizontal, calculate its angular velocity at that position. If not, calculate the angle the bar makes with the horizontal when it comes to rest momentarily.
Disk D - 2.3 m F Disk F - 2.4 m Disk E- 1.3 m D 0.3 E *all given measurements are disk Δ diameters Disk C - 1.1 m 'Disk A - 1.2 m Disk B - 2.5 m B A Shaft I diameter - 1.1 m Find (a) the velocity and total acceleration of the point 0.3 meters from the center of Disk E, as shown, at t = 0.67345 seconds. Also, (b) determine the number of revolutions done by Disk E at the same time. Given motor shaft I, from rest, it rotates to achieve a counterclockwise angular velocity, w; = (0.13t + 3.32t? ) rad/s and no slippage occurs within the system. %3D
Rod OA rotates counterclockwise with a constant angular velocity of 0 = 5 rad/s. The double collar B is pin-connected together such that one collar slides over the rotating rod and the other slides over the horizontal curved rod, of which the shape is described by the equation = 1.5(2-cos) ft. (Figure 1) Figure r = 1.5 (2 cos 6) ft 6 = 5 rad/s 1 of 1 Part A If both collars weigh 0.60 lb, determine the magnitude of the normal force which the curved rod exerts on one collar at the instant = 140 °. Neglect friction. Express your answer to three significant figures and include the appropriate units. N = Submit μA Value Request Answer Units < Return to Assignment Provide Feedback ?
At the instant shown, the uniform slender rod with mass m = 32 kg is pin-supported at point O. It is subjected to a counterclockwise moment M = 65 N•m, has a counterclockwise angular velocity of W= 5.8 rad/s, and the dimensions a = 0.23 m and b = 0.69 m. Determine angular acceleration of the rod (in rad/s²) at this instant. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Negative sign must be included if the angular acceleration is clockwise. Take g = 9.81 m/s². a Your Answer: Answer M b
a rotating shaft carries four unbalanced masses 18 kg, 14 kg, 16 kg and 12 kg at radii 50 mm, 60 mm, 70 mm and 60 mm respectively. the 2nd, 3rd and 4th masses revolve in planes 80 mm, 160 mm and 280 mm respectively measured from the plane of the first mass and are angularly located at 60°, 135° and 270° respectively measured clockwise from the first mass looking from this mass end of the shaft. the shaft is dynamically balanced by two masses, both located at 50 mm radii and revolving in planes mid-way between those of 1st and 2nd masses and midway between those of 3rd and 4th masses. determine, graphically or otherwise, the magnitudes of the masses and their respective angular positions.
The uniform slender rod, witha mass of 9.6 kg and a length ofE = 0.76 m, is fixed to a light vertical shaft at 0. The shaft can rotate freely in the stationary socket on the floor. A constant moment of M 11.8 N m is applied to the shaft, as indicated. What is the magnitude of the angular acceleration (in rad/s) of the rod? The rod moves in a horizontal plane.
Specifically a dynamics problem. Question in pic below. Answer: omega = 20.35 rad/s