F4-12. If the two forces F, = {100i – 120j + 75k} lb and F2 = {-200i+ 250j + 100k} lb act at A, determine the resultant moment produced by these forces about point O. Express the result as a Cartesian vector. 4 ft F2 5 t 3 ft

help me experts pleaseeee thanks

Please don't provide handwritten solution .....

A (Yo-Yo) of mass m has an axle of radius b and spool of radius R. It's 1 moment of inertia be taken to be I = mR? and the thickness of the string %3D 2.

Determine the moments of inertia I, and I, of the area shown about vertical and horizontal axes running through the centroid of the х у area, if a = 2.9 in. В 1.2 in. 5.0 in. 1.8 in. 0.9 in. 2.0 in. a The value of I, is in“. The value of Iy is in4

If M1=180 Ib.ft, M2=90 lb.ft and M3=120 Ib.ft, determine the magnitude and coordinate direction angles of the resultant couple moment. 150 lb-ft M3 1 ft 45 45° 2 ft (2 ft 2 ft 3 ft M2 M1

A 230-g mass hangs from a string that is wrapped around a pulley, as shown in the figure. The pulley is suspended in such a way that it can rotate freely. When the mass is released, it accelerates toward the floor as the string unwinds. Model the pulley as a uniform solid cylinder of mass 1.00 kg and radius 9.00 cm. Assume that the thread has negligible mass and does not slip or stretch as it unwinds. Determine the magnitude a of the pulley's angular acceleration. rad/s² .2 Determine the magnitude of the acceleration a of the descending weight. a = m/s?

Suppose you exert a force of 170 N tangential to the outer edge of a 1.355-m radius 73-kg grindstone (which is a solid disk). What is the angular acceleration of the grindstone αf, in radians per square second, if there is an opposing frictional force of 21 N exerted 0.35 m from the axis?

The hoop is cast on the rough surface such that it has an angular velocity w =5 rad/s and an angular acceleration a = 4 rad/s. Also, its center has a velocity of vo = 5 m/s and a deceleration ao = 2 m/s. Determine the magnitude of the acceleration of point B and its direction angle measured CCW from thez positive axis. do 45 0.3 m Select one OA ap - 5.04 m/s, and 0 170.31 OB.ap 6.86 mist ande 160.12 OCap 7.81 mist and e 162.62 OD.ap 9.29 m/s and 0 151.34

Save & Exit Check my In the construction of railroads, curvature of the track is measured in the following way. First a 100.0-ft-long chord is measured. Then the curvature is reported as the angle subtended by two radii at the endpoints of the chord. (The angle is measured by determining the angle between two tangents 100.0 ft apart; since each tangent is perpendicular to a radius, the angles are the same.) In modern railroad construction, track curvature is kept below 1.40°. What is the radius of curvature of a "1.40° curve"? 100 ft ft < Prev 10 of 36 Next MacBook