Determine the normal reaction exerted on the ground by one of its rear wheels. Express your answer to three significant figures and include the appropriate uni NB= 88.46 HA lb ?
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- The homogeneous bar AB weighs 25 lb. Determine the magnitudes of the forces acting on the bar at A and B. Neglect friction.The force F=5i+12j+4k lb is applied to the handle of the door. Determine the orthogonal component of F that is perpendicular to the plane of the door.The 80-kg crate has its center of gravity at G. Determine the smallest force P that will initiate motion if =35.
- The automobile, with center of gravity at G, is parked on an 18 slope with its brakes off. Determine the height h of the smallest curb that will prevent the automobile from rolling down the plane.The figure shows composite shape comprising of two long slender rod bodies. The horizontal body has a length of 1.2m and mass 3kg; the second body has a length 0.4m and mass 1kg. The centre of gravity of each of the individual bodies can be found at their geometric centre, labelled G₁ and G2₂ in the figure. The composite shape has symmetry about the x axis, thus its centre of gravity lies on the line 'y=0' as depicted in the figure. Calculate the x coordinate of the centre of gravity of the composite shape. O O 0.95 m 0.75 m 0.50 m Don't Know 0.60 m G₁ G₂A truck is driving over a scale at a weight station. When the front wheels drive over the scale, the scale reads 5800 N. When the rear wheels drive over the scale, it reads 6500 N. The distance between the front and rear wheels is 3.20 m Determine the distance between the front wheels and the truck's center of gravity.
- The plant in the picture has mass of 29 kg, and is hanging at a distance of 1.4 meters from the wall. The horizontal rod has mass of 6.2 kg. Assume that its weight is evenly distributed, therefore it can be treated as a single force at the center of mass. The rod is 2 meters long, and there is a cable at a 23° angle supporting it at the end. Center of mass of rod from the point = 2/2=1m Using the wall as the axis of rotation, find the magnitude of the downward torque, from both the weight of the rod and the weight of the plant. t=458.64Nm a.The downward torque is balanced by the upward torque from the force of tension. Find the magnitude of the force of tension. T=?N b.F is the contact force between the rod and the wall. Using the other horizontal force in the problem, find the horizontal component of F (the normal force) that must be present for the rod to be at equilibrium. Fx=?N c.There is a vertical force from a component of the tension, but this is not enough to balance the…2. The backhoe supports a 7.5 kN weight of soil in the bucket which has a center of gravity at G. Find: 0.64 m 0.25 m ● 0.26 m 0.3 m 1.68 m Force in cylinder ED (indicate if force is in tension or compression) Force in cylinder FI (indicate if force is in tension or compression) OF 0.4 m 0.1 m A -1.44 m- 17.5 kN 0.25 m D B m E 0.22 m 0.45m H O SUSIS Force in ED = Force in FI = KN (Tor C) kN (Tor C)Determine the x and y scalar components of F= 250 lb
- The car rests on four scales and in this position the scale readings of both the front and rear tires are shown by FA and FB. When the rear wheels are elevated to a height of 3 ft above the front scales, the new readings of the front wheels are also recorded. Use this data to compute the location x̄ and y̅ to the center of gravity G of the car. The tires each have a diameter of 1.98 ft.If the cylinder mass is 83 kg, determine the cylinder A mass to hold the system in the figure position.The center of gravity of the 30-lb square plate is at G. The plate can beraised slowly without rotating if the resultant of the three cable tensions is a 30-lb force that passes through G. If T1 = 6 lb and T2 = 14 lb, find T3 and the x- and y-coordinates of its point of attachment.