A uniform beam is hinged at one end and held in a hori- zontal position by a cable, as shown in Fig. 9–42. The tension in the cable (a) must be at least half the weight of the beam, no matter what the angle of the cable. (b) could be less than half the beam's weight for some angles. (c) will be half the beam's weight for all angles. (d) will equal the beam's weight for all angles. FIGURE 9–42 MisConceptual Question 3: beam and cable.

Why is it not possible to sit upright in a chair and rise toyour feet without first leaning forward?

Below figure a rod of AB by the length of 8.0 m and mass of m2 = 35.0 kg is hinged at one end and the other end is attached to a cord and cord to the wall. A mass of m1= 40.0 kg is at 2.0 meter from the hinge and another mass with mass of m3 = 50 kg is at 5.0 meter from hinge. At this situation find amount of tension in cord and exerted force from wall on the hinge.

In the figure, one end of a uniform beam of weight 350 N is hinged to a wall; the other end is supported by a wire that makes angles - 26° with both wall and beam. Find (a) the tension in the wire and the (b) horizontal and (c) vertical components of the force of the hinge on the beam. (a) Number (b) Number (c) Number i i Units Units Units Hinge 8 > <

KPECTED HAS OCCU... Subject ystem S- rchpool.sona- ems.com man Subject Pool tem Department... 6³ 2 [108 W 24,919 Xx :8: F2 3 6. A 150 kg uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. Calculate the magnitude of the tension in the wire if the angle between the cable and the horizontal is 8 = 46°. X 1832.64 N E 20 F3 $ 4 R HEATRA MAL 2 7 F4 % 5 T F5 ^ 6 tv ♫ MacBook Air F6 Y & 7 44 F7 U M M | L T E 10 * 8 0 30.0⁰ DII F8 ( 9 Beam A DD F9 O O W F10 zoom B P C F11 ISUIH by mi 04 M vauies or roc puffer d + = F12 delete

A wheelbarrow with w weight of  150N is used to lift a load with a weight of 900 N. The length from the wheel axle to the center of gravity (COG) of the load is 2 ft, and the distance to the (COG) of the wheelbarrow is 1.5 ft. The length from the wheel axle to the hands is 5 ft. The wheelbarrow is also tilted at an angle of 30 degrees with respect to the horizontal.   Calculate the motive force required to hold the wheel barrow

(b) In the figure below, a uniform beam of weight 500 N and length 3.0 m is suspended horizontally. On the left it is hinged to a wall; on the right it is sup- ported by a cable bolted to the wall at distance D above the beam. The least tension that will snap the cable is 1200 N. (a) What value of D corresponds to that tension? (b) To prevent the cable from snapping, should D be increased or decreased from that value? D Cable Beam