Current Attempt in Progress The figure shows a person whose weight is W = 794 N doing push-ups. Find the normal force exerted by the floor on (a) each hand and (b) each foot, assuming that the person holds this position. 0.840 m 0.410 m (a) Number Units (b) Number Units
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- The drawing shows a per- son (weight, W = 584 N) doing push-ups. Find the normal force exerted by the floor on each hand and each foot, assum- 12. ing that the person holds this position. 0.840 m 0.410 mSAQ 1 1.2 m D C 80 kN m An 80-kn.m couple shown in the plate is caused by a pair of parallel forces of magnitude F (not shown). 1.6 m Determine: a) the smallest possible value of F, and b) the value of F if the forces act at points A and C and are parallel to the dashed line shown at A. A В 60°2. The drawing below shows a person with a weight of 584N doing push-ups. Find the normal force exerted by the floor on each hand and each foot, assuming that the person holds this position. 0.840 m cg 0.410 m
- 500 mm Situation 1. A hand truck is used to move two kegs, each of mass 40 kg. Neglecting the mass of the hand truck, determine (a) the vertical force P that should be applied to the handle to maintain equilibrium when a = 35', (b) the corresponding 350 mm A 80 mm reaction at each of the two wheels. P. В 300 mmThe figure shows a person whose weight is W = 782 N doing push-ups. Find the normal force exerted by the floor on (a) each hand and (b) each foot, assuming that the person holds this position.Situation 2. The rope CE exerts a 500-N force T on the hinged door. (a) Express T in terms of components; (b) determine the magnitude of the component of T perpendicular to the door. E (0.2, 0.4, –0.1) m D (0, 0.2, 0) m A (0.5, 0, 0) m В (0.35, 0, 0.2) m
- 500 mm Situation 1. A hand truck is used to move two kegs, each of mass 40 kg. Neglecting the mass of the hand truck, determine (a) the vertical force P that should be applied to the handle to maintain equilibrium when a = 35°, (b) the corresponding 350 min A 80 mm X P reaction at each of the two wheels. В 300 mmSAQ 1 1.2 m D 80 kN m An 80-kn. m couple shown in the plate is caused by a pair of parallel forces of magnitude F (not shown). 1.6 m Determine: a) the smallest possible value of F, and b) the value of F if the forces act at points A and C and are parallel to the dashed line shown at A. А В 60°A uniform plank of length 2.00 m and mass 31.0 kg is supported by three ropes, as indicated by the blue vectors in the figure below. Find the tension in each rope when a 685-N person is d = 0.500 m from the left end. magnitude of IN N magnitude of T magnitude of ₂ N Need Help? L 1₁. T₂C -2.00 m Read It Watch It 40,0⁰
- A bridge of length 50.0 m and mass 8.10 x 104 kg is supported on a smooth pier at each end as shown in the figure below. A truck of mass 2.90 x 104 kg is located 15.0 m from one end. What are the forces on the bridge at the points of support? AM. A, В 15.0 m 50.0 m normal force at point A normal force at point B N Need Help? Read It Master It16. ao The drawing shows a rectangular piece of wood. The forces applied to corners B and D have the same magnitude of 12 N and are directed parallel to the long and short sides of the rectangle. The long side of the rectangle is twice as long as the short side. An axis of ro- tation is shown perpendicular to the plane of the rectangle at its center. A third force (not shown in the drawing) is applied to cor- ner A, directed along the short side of the rectangle (either toward B or away from B), such that the piece of wood is at equilib- rium. Find the magnitude and direction of the force applied to corner A. A D Axis Problem 16Situation 3. The rope CE exerts a 500-N force T on the hinged door. (a) Express T in terms of components; (b) determine the magnitude of the component of T perpendicular to the door. (0, 0.2, 0) m T E D B (0.35, 0, 0.2) m (0.2, 0.4, -0.1) m A (0.5, 0, 0) m C -X 2 ft x