Find the horizontal force , P required to turn the wheel weighing 500 over the block 10cm high if radius of the wheel is 25 cm
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Q: Find the angle of tilt with the horizontal so that| the contact force at B will be one-half that at…
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- The figure models the handle of the water cock described in Prob. 4.9. Draw the FBD of the handle, neglecting its weight. Count the unknowns.The uniform 240-lb bar AB is held in the position shown by the cable AC. Compute the tension in the cable.The homogeneous bar AB weighs 25 lb. Determine the magnitudes of the forces acting on the bar at A and B. Neglect friction.
- 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 center of gravity of the 3000-lb car is at G. The car is parked on an incline with the parking brake engaged, which locks the rear wheels. Find (a) the normal forces (perpendicular to the incline) acting under the front and rear pairs of wheels; and (b) the friction force (parallel to the incline) under the rear pair of wheels.Find the elevation h (km) where the weight of an object is one-tenth its weight on the surface of the earth.
- The cable AOB weighs 5.2 N/m. When the horizontal 30-N force is applied to the roller support at B, the sag in the cable is 5 m. Find the span L of the cable.Find the internal force systems acting on sections 1 and 2.The concrete dam shown in cross section holds back fresh water (=1000kg/m3). Determine the resultant force R of the water pressure acting on one meter length of the dam. Also, compute the coordinates of a point on the line of action of R.