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- A person is pushing a fully loaded 20.65 kg wheelbarrow at constant velocity along a plank that makes an angle ?=45.0∘with the horizontal. The load is distributed such that the center of mass of the wheelbarrow is exactly halfway along its length ?. What is the magnitude of the total force ?? the person must apply so that the wheelbarrow is parallel to that plank? You may neglect the radius of the wheel in your analysis. The gravitational acceleration is ?=9.81 m/s2.The resultant of the three concurrent forces acting on the eyebolt is the force R = 600j l Determine the magnitude of the force P and the angle θ that specifies the direction of the 800-lb force.To balance a 35.5-kg automobile tire and wheel, a mechanicmust place a 50.2-g lead weight 25.0 cm from the center of thewheel. When the wheel is balanced, its center of mass is exactly atthe center of the wheel. How far from the center of the wheel wasits center of mass before the lead weight was added?
- Where should the center of gravity of this additional mass be located?In order to get his car out of the mud, a man ties one end of a rope to the front bumper and the other end to a tree 15 m away, as shown below. He then pulls on the center of the rope with a force of 400 N, which causes its center to be displaced 0.30 m, as shown. What is the force of the rope on the car?Find the net torque acting on the ball about its center of mass?
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