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- Sample Problem 2/5 Calculate the magnitude of the moment about the base point O of the 600-N force 2 m 40 40° 50 600N 4 m 600 N 77TTTTarrow_forwardO Example An experimental device imparts a force of magni- tude F = 225 N to the front edge of the rim at A to 900 mm 700 mm simulate the effect of a slam dunk. Determine the moments of the force F about point O and about point B. Finally, locate, from the base at O, a point C on the ground where the force imparts zero moment. B 300 mm 3050 mm REDMI NOTE 9 PRO AI QUAD CAMERAarrow_forwardThe mass of the A gear is 10 kg and the turning radius is 200 mm. Of gear Bits mass is 3kg and the turning radius is 80 mm. When the system is stationary to gear B. Moment of 6 N.m is applied. By neglecting friction;Find the tangential force from gear B to gear A.arrow_forward
- One of the ends of the rigid rod AB of mass m and length L = 4R is attached to the edge of the radius R disc by a pin. The other end of the rod can slide freely on the ground without friction. A motor connected to the center of the disk at point O rotates the disk at a constant angular velocity D. Find all the forces acting on the rod at the moment θ = 30 degrees and the direction OB is vertical at the moment shown in the figure.arrow_forwardThe homogeneous bars have a mass as follows: bar AC has a mass of 7 kg, bar ABhas a mass of 10 kg, and rod BD has a mass of 2 kg. In the drawn position, therod AC has an angular velocity of 4 rad/s and an angular acceleration of 2 rad/s2, both clockwise.Determine the magnitude of the moment M acting on the member AC. Give all the equations neededto solve this question without calculating itarrow_forwardQ4/ In picking up a load from position B, a cable tension T of magnitude 24 kN is developed. Calculate the moment which T produces about the base O of the 4 of 5 construction crane. 18 m T 30 m B. 5 m 6 m Ans. Mo = - 302i + 139.4; - 83.6k Nmarrow_forward
- Q4 / 1. For the force system shown in ( fig.4) below the resultant ; (R) is equal to ( 500N) , the angles( a ) and (ß) are ; (25°) and (55° ) respectively ; Determine the value of the component (P) R=500N a= 25° Fig. (4)arrow_forwardII. Eхample An experimental device imparts a force of magni- tude F = 225 N to the front edge of the rim at A to 900 mm 700 mm simulate the effect of a slam dunk. Determine the F moments of the force F about point O and about point B. Finally, locate, from the base at 0, a point C on the ground where the force imparts zero moment. 300 mm A 3050 mm Example The 30-N force P is applied perpendicular to the portion BC of the bent bar. Determine the moment of P about point B and about point A. P = 30 N 1.6 m 45° B 1.6 m A 2.4.2 Couple A couple consists of two forces which have equal magnitudes and parallel but opposite in sense. The moment of the couple is the algebraic sum of the moments of its forces about any axis perpendicular -F a to the plane of the couple. (a) II >arrow_forwardProblem 3/32 3/33 A person is performing slow arm curls with a 20-lb weight as indicated in the figure. The brachialis muscle group (consisting of the biceps and brachialis muscles) is the major factor in this exercise. Deter- mine the magnitude F of the brachialis-muscle- group force and the magnitude E of the elbow joint reaction at point E for the forearm position shown in the figure. Take the dimensions shown to locate the effective points of application of the two muscle groups; these points are 8 in. directly above E and 2 in. directly to the right of E. Include the 3.2-lb forearm weight which acts at point G. State any assumptions. Ans. F = 154.2 lb, E = 131.8 lb %3D Humerus Biceps Brachialis 8" Ulna 20 lb Radius E 4" 2" 14"arrow_forward
- Consider the system shown in figure. Determine the moment of the force F about the door hinge at A.arrow_forwardThe tire wrench shown in the accompanying figure is used to tighten the bolt on a wheel. Given the information on the diagram, determine the moment about point O for the two loading situations shown: a. pushing perpendicular to the wrench arm, and b. pushing at a 75° angle, as shown.arrow_forward2/40 A man exerts a force F on the handle of the station- ary wheelbarrow at A. The mass of the wheelbar- row along with its load of dirt is 85 kg with center of mass at G. For the configuration shown, what force F must the man apply at A to make the net moment about the tire contact point B equal to zero? mg 60 650 mm 200 mm 925 mm Problem 240arrow_forward
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