A 200-kg robotic arm at an assembly plant is extended horizontally (see figure below). The massless support rope attached at point B makes an angle of 12.0° with the horizontal, and the center of mass of the arm is at point C. (Assume that L1 = 1.42 m and L2 = 2.62 m.) (a) What is the tension in the support rope? (b) What are the magnitude and direction of the force exerted by the hinge A on the robotic arm to keep the arm in the horizontal position? magnitude = _____ N direction = _______° counterclockwise from the +x axis

A hungry bear weighing 735 N walks out on a beam in an attempt to retrieve a basket of goodies hanging at the end of the beam (see the figure below). The beam is uniform, weighs 200 N, and is 5.50 m long, and it is supported by a wire at an angle of e = 60.0°. The basket weighs 80.0 N. Goodies (a) Draw a force diagram for the beam. (Submit a file with a maximum size of 1 MB.) Choose File No file chosen This answer has not been graded yet. (b) When the bear is at x = 1.20 m, find the tension in the wire supporting the beam. When the bear is at x = 1.20 m, find the components of the force exerted by the wall on the left end of the beam. (Assume the positive +x direction is to the right and the positive +y direction is upward. Include the sign of the value in your answer.) F = (c) If the wire can withstand a maximum tension of 875 N, what is the maximum distance the bear can walk before the wire breaks?

The system shown in the figure is in equilibrium.  If the block has a mass of 7 kg and the angle θ = 32.  What is the tension in the string connecting the block to the wall?  Express your answer in Newtons.

When a person stands on tiptoe (a strenuous position), the position of the foot is as shown in Figure a. The total is supported by the force n exerted by the floor on the toes of one foot. A mechanical gravitational force on the body, F model of the situation is shown in Figure b, where T is the force exerted by the Achilles tendon on the foot and R is the force exerted by the tibia on the foot. Find the values of T, R, and 0 when F, = n = 770 N. (For 0, enter the smaller of the g' two possible values between 0° and 90°.) -Achilles tendon Tibia 15.0° 18.0 cm 25.0 cm a T = R = N = Submit Answer

The truss structure in a Figure Q4a is supported at A and B and has three forces acting vertically at nodes D, E and C, where F₁ = 25 KN, F2 = 75 kN and F3 = 35 kN. The horizontal distance between nodes A and B is d₁= 3.50 m and the horizontal distance between nodes B and C is d₂= 3.50 m. The angle a = = 60°, B = 60° and angle 0 = 30°. α F1₁ d1 3 IB * F2 E d2 Ꮎ F3 с Figure Q4a a) Determine the reactions at RA and Rc and A and C. Give your answers in kilonewtons (kN) to two decimal places. b) Determine the force acting in member AB and clearly state if the member is in compression or tension. Give your answer in kilonewtons (kN) to two decimal places.

A 30 kg mass is supported at the end of a horizontal beam of negligible mass that is hinged to a pole as shown. A cable at an angle of 42 with the beam helps support the weight. Find the tension in each cable, T1 and T2.

A 5 kg beam 2 meters long is used to support a 10 kg sign by means of a cable attached to a building. The signs hangs from the end of the 2 m long beam, and the cable makes a 40 degree angle with the beam. What is the tension in the cable?

Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the door. One child pushes with a force of 185 N at a distance of 0.600 m from the hinges, and the second pushes at a distance of 0.400 m. What force (in N) must the second exert to keep the door from moving? Assume friction is negligible.

A 20.4 kg mass (m) is suspended by the cable assembly as shown in the figure. The cables have no mass of their own. The cable to the left (T) of the mass makes an angle of 0.00° with the horizontal, and the cable to the right (T2) makes an angle (02) of 30.1°. If the mass is at rest, what is the tension in each of the cables, T and T2? The acceleration due to gravity T, T, is g = 9.81 m/s². N T1 = m N T2 =

The block shown in (Figure 1) has a mass of m = 75 kg, a height H = 1.1 m, and width L = 1.6 m. It is resting on a ramp that makes an angle 0 = 34° with the horizontal. A force P is applied parallel to the surface of the ramp at the top of the block. What is the maximum force that can be applied without causing the block to move? The coefficient of static friction is μs = 0.42, and the center of mass of the block is at the center of the rectangle. What is the maximum magnitude of P that can be applied before tipping would occur, assuming the block does not slip? Express your answer to three significant figures with appropriate units. Ptip = 649 N Submit Previous Answers Correct Figure W H F x 2 of 2 Part F What is the maximum magnitude of P that does not cause motion of the block? Express your answer to three significant figures with appropriate units. ☐ μÅ Pmax = |667.611 N Submit Previous Answers Request Answer × Incorrect; Try Again; 5 attempts remaining Provide Feedback ? Review…