A person bends forward to hold a dumbbell of 10.0-kg. The spine and upper body are pivoted at the base of the spine, and represented as a uniform horizontal rod of 25.0-kg with center of mass is 0.21m away from the pivot. The horizontal distance from the dumbbell to the pivot is 0.42m. The spinalis muscle, attached at a point 0.28 m away from the pivot, exerts a tension force 15° above the horizontal spine and maintains the position of the back. a) Determine the magnitude of torque exerted by the weight of the upper body; b) Determine the magnitude of the torque exerted by the dumbbell; c) Determine the magnitude of the torque exerted by the spinalis muscle; d) Determine the magnitude of the tension force exerted by the spinalis muscle. Tmuscle

Axis where x = 1.66. (a) A (b) N-m 43.0⁰ (c) As shown in the top-view diagram, a 46.6-N force is applied to the outer edge of a door of width 1.66 m. Find the torque when the line of action of the force passes through the axis of the door hinges. 4

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In the following mechanism, T1 torque and F1 force act on the AB link. Equilibrium conditionSCD according to the superposition principle, the magnitude of torque required to be applied to the CB.obtain by making drawings? (F1 is vertical from mid point of ABIt is applied directly) O=40⁰, CB=3m, AB=2m

he wheels of a wagon can be approximated as the combination of a thin outer hoop, of radius ?h=0.421 mrh=0.421 m and mass 5.27 kg5.27 kg, and two thin crossed rods of mass 7.37 kg7.37 kg each. A farmer would like to replace his wheels with uniform disks ?d=0.0588 mtd=0.0588 m thick, made out of a material with a density of 6450 kg6450 kg per cubic meter. If the new wheel is to have the same moment of inertia about its center as the old wheel about its center, what should the radius of the disk be?

A person on horseback is on a drawbridge which is at an angle e = 20.0° above the horizontal, as shown in the figure. The center of mass of the person-horse system is d = 1.00 m from the end of the bridge. The bridge is l = 7.05 m long and has a mass of 1,960 kg. A cable is attached to the bridge 5.00 m from the hinge and to a point on the wall h = 12.0 m above the bridge. The mass of person plus horse is 1,240 kg. Assume the bridge is uniform. Note that the drawing is not to scale and you may not assume that the cable is perpendicular to the bridge. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) (a) Determine the tension in the cable (in N). (b) Determine the horizontal force component (in N) acting on the bridge at the hinge. magnitude N direction to the right v (c) Determine the vertical force component (in N) acting on the bridge at the hinge. magnitude N direction upwards

A person on horseback is on a drawbridge which is at an angle = 20.0° above the horizontal, as shown in the figure. The center of mass of the person-horse system is d = 1.00 m from the end of the bridge. The bridge is = 7.09 m long and has a mass of 1,920 kg. A cable is attached to the bridge 5.00 m from the hinge and to a point on the wall h = 12.0 m above the bridge. The mass of person plus horse is 1,260 kg. Assume the bridge is uniform. Note that the drawing is not to scale and you may not assume that the cable is perpendicular to the bridge. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) ITALIACHTAI AVUTA É (a) Determine the tension in the cable (in N). N (b) Determine the horizontal force component (in N) acting on the bridge at the hinge. magnitude direction -Select-v 11.08 N -Select-- (c) Determine the vertical force component (in N) acting on the bridge at the hinge. magnitude N…

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You hold a 1.80-N softball in your hand as shown in the figure. Consider your forearm and hand to be a uniform rod with a mass of 1.25 kg and the distance between the elbow joint and the ball in your hand is 2L = 31.5 cm. Your biceps exerts an upward force of 14.5 N on the forearm and is attached at a distance of d = 2.20 cm from the elbow. (a) Using the elbow joint as the axis of rotation, determine the magnitude of the net torque acting about the elbow due to the forearm, hand, and ball.