An essentially weightless shove is 120 cm long.  Someone holds it horizontally, supporting it with their left hand at the shovel's center of gravity and their right hand 80.0 cm to the right of the c.g.  The shovel contains a 20.0-N rock whose c.g. is 8.00 cm to the right of the edge of the shovel.  How much force does the person exert down on the handle?   [+(0.80m)(F)] + [-(0.08m)(20.0N)]=0 F=1.6Nm/0.80m -> F = 2.0N, but the answer key says it should be 8.0N.  Where is my error?

A horizontal wire holds a solid uniform ball of mass (m) in place on a tilted ramp that rises 35.0° above the horizontal. ihe Surface of this ramp is perfectly smooth, and the wire is directed anay from the cen ter of the ball. (3.) What is the tension in the nire? 35.0°

The arm in the figure below weighs 37.7 N. The force of gravity acting on the arm acts through point A. Determine the magnitudes of the tension force in the deltoid muscle and the force F S exerted by the shoulder on the humerus (upper-arm bone) to hold the arm in the position shown. (Enter your answers to at least the nearest newton.) N Ft Fs N √12⁰ 0 F 0.080 m -0.290 m TE

The arm in the figure below weighs 44.1 N. The force of gravity acting on the arm acts through point A. Determine the magnitudes of the tension force F in the deltoid muscle and the force F exerted by the shoulder on the humerus (upper-arm bone) to hold the arm in the position shown. (Enter your answers to at S least the nearest newton.) Ft N S = F N 12° F 0.080 m -0.290 m- ☺

The (Figure 1) shows two thin beams joined at right angles. The vertical beam is 12.0 kg and 1.00 m long and the horizontal beam is 21.0 kg and 2.00 m long. Neglect the lateral dimensions of the beams.Calculate the gravitational torque on the joined beams about an axis through the corner.

35.0° Dinysics Demos SuDDly Co. The pole is held horizontally by a massless wire under 305 N of tension, connected at a 35° angle. A 8 kg sign hangs from the end of the 4 meter pole. The pole has mass 4 kg. How far away is the wire is attached from the wall? Answer in meters to 3 sig figs.

How do you do this? A hungry bear weighing 700 N walks out on a beam in an attempt to retrieve a basket of goodies hanging at the end of the beam (see figure below). The beam is uniform, weighs 200 N, and is 6.00 m long, and it is supported by a wire at an angle of ? = 60.0°. The basket weighs 80.0 N. a) When the bear is at x = 1.00 m, find the tension (in N) in the wire supporting the beam and the components of the force exerted by the wall on the left end of the beam. b) If the wire can withstand a maximum tension of 875 N, what is the maximum distance (in m) the bear can walk before the wire breaks?

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A window washer is standing on a scaffold supported by avertical rope at each end. The scaffold weighs 200 N and is3.00 m long. What is the tension in each rope when the 700-Nworker stands 1.00 m from one end?

When you lift an object by moving only your forearm, the main lifting muscle in your arm is the biceps. Suppose the mass of a forearm with hand is 1.60 kg. If the biceps is connected to the forearm a distance of 2.3 cm from the elbow, how much force must the biceps exert to hold a 46 N ball at the end of the forearm at distance of 36.0 cm from the elbow, with the forearm parallel to the floor, in Newtons? Use g = 10.0 m/s2. Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.