In the figure, a nonuniform bar is suspended at rest in a horizontal position by two massless cords as shown in the figure here. One cord makes the angle 0 3.9 m, compute the distance x from the left end of the bar to its center of mass. 36.3° with the vertical; the other makes the angle p = 53.7° with the vertical. If the length L of the bar is com Use correct number of significant digits; the tolerance is +/-2%
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- In the figure, a nonuniform bar is suspended at rest in a horizontal position by two massless cords as shown in the figure here. One cord makes the angle 0 = 38.0° with the vertical; the other makes the angle $ = 52° with the vertical. If the length L of the bar is 4.2 m, compute the distance x from the left end of the bar to its center of mass. L com X =Chapter 12, Problem 031 In the figure, a nonuniform bar is suspended at rest in a horizontal position by two massless cords as shown in the figure here. One cord makes the angle 0 40.8 with the vertical; the other makes the angle p 49.2° with the vertical. If the length L of the bar is 2.0 m, compute the distance x from the left end of the bar to its center of mass com Use correct number of significant digits; the tolerance is +/-2%In the figure, a nonuniform bar is suspended at rest in a horizontal position by two massless cords as shown in the figure here. One cord makes the angle e = 20.5° with the vertical; the other makes the angle p = 69.5° with the vertical. If the length Lof the bar is 5.1 m, compute the distance x from the left end of the bar to its center of mass. com X = i
- A 1204-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end A 1515-N crate hangs from the far end of the beam. Find the magnitude of the tension in the wire. The angle theta (9) is 29 degrees and the angle phi () is 53 degrees. The length of the beamis L Вeam ROUND OFF FINAL ANSWER TO THE NEAREST WHOLE NUMBER. INPUT THE SYMBOL OF THE UNIT. NO SPACE BETWEEN THE NUMBER AND THE UNIT.In the figure, a horizontal scaffold, of length 2.29 m and uniform mass 58.5 kg, is suspended from a building by two cables. The scaffold has dozens of paint cans stacked on it at various points. The total mass of the paint cans in 78.4 kg. The tension in the cable at the right is 771 N. How far horizontally from that cable is the center of mass of the system of paint cans? Number i Ebal UnitsThe forearm shown below is positioned at an angle with respect to the upper arm, and a 5.6 kg mass is held in the hand. The total mass of the forearm and hand is 2.1 kg, and their center of mass is 16.1 cm from the elbow. (Assume the biceps muscle exerts a force on the forearm that acts vertically.) 5.6 kg B 37.5 cm 4.0 cm (a) What is the magnitude of the force (in N) that the biceps muscle exerts on the forearm for 0-60%7 N (b) What is the magnitude of the force on the elbow joint (in N) for the same angle? N (c) How do these forces depend on the angle 07 The force that the biceps muscle exerts increases and the force on the elbow joint decreases as increases. They both decrease as @ increases. They both increase as increases. They do not depend on 0. The force that the biceps muscle exerts decreases and the force on the elbow joint increases as increases.
- A uniform beam of length L and mass M has its lower end pivoted at P on the floor, making an angle θ with the floor. A horizontal cable is attached at its upper end B to a point A on a wall. A box of mass M is suspended from a rope that is attached to the beam one-fourth L from its upper end. a) Write an expression for the y-component Py of the force exerted by the pivot on the beam. b) Write an expression for the tension T in the horizontal cable AB c) Write an expression for the x-component Px of the force exerted by the pivot on the beam, in terms of T.Consider the 120-cm board supporting three loads as shown below. The beam weighs 45 grams. If the system is in equilibrium, a. what is the magnitude of the force exerted by the pin support to the board? b. Find the perpendicular distance, x, of the pin support from the left end of the board. 30cm A В C 259 30g 75gThree forces F, = 20 N, F2 = 10 N and F, = 5.0 N act on the structure shown in figure below. A fourth force F, to be applied at a point P on the structure to keep it in equilibrium. The fourth force has two components Fv and Fh. Given that a = 2.0 m, b = 3.0 m and c = 1.0 m, Calculate %3D %3D %3D %3D Fh, Fv and d k Oa Fh- 15N,Fv 10N=,d= 3m Ob Fh-30N,Fv SN,d-133m Oc Fh= 10N, Fv 15N=,d = 3m Od. Fh - SN,Fv 30N-,d-133m
- One end of a uniform meter stick is placed against a vertical wall. The other end is held by a lightweight cord that makes an angle ? with the stick. The coefficient of static friction between the end of the meter stick and the wall is 0.400. A block of the same weight as the meter stick is suspended from the stick, as shown, at a distance ? from the wall. Assume that theta= 15.0o in this problem. What is the minimum value of ? for which the stick will remain in equilibrium?In the figure, a nonuniform bar is suspended at rest in a horizontal position by two massless cords as shown in the figure here. One cord makes the angle e = 20.4° with the vertical; the other makes the angle p = 69.6° with the vertical. If the length L of the bar is 2.9 m, compute the distance x from the left end of the bar to its center of mass. com X = iThree forces F, = 20 N, F2 = 10 N and F, = 5.0 N act on the structure shown in figure below. A fourth force F, to be applied at a point P on the structure to keep it in equilibrium. The fourth force has two components Fv and Fh. Given that a = 2.0 m, b = 3.0 m and c = 1.0 m, Calculate Fh, Fv and d %3D N Fh = 30N, Fv 5N= ,d = 1.33m OE Fh = 5N, Fv 30N=, d = 1.33m Oc Fh = 10N, Fv 15N=, d= 3m Od. Fh = 15N, Fv 10N= , d = 3m FINISH A