Chapter 9, Problem 90P

The figure shows the Russel fracture traction device and a mechanical model of the leg. The leg is held in balance in the position indicated by the two weights attached to the two cables. The total weight of the leg and the cast is W=250 N. The distance between the points A and B where the cables are attached to the leg is given as L=100 cm and the angle of the leg with the horizontal is γ=6°. Point C is the center of gravity of the cast and leg at three quarters of the L measured from point A (3L/4= 75 cm). The angle that cable 2 makes with the horizontal is measured as β=40°. Accordingly, in order for the leg to remain in balance in the shown position; a) Find the tensile force T1 in cable 1. (Write your result in N) Answerb) Find the tensile force T2 in cable 2. (Write your result in N) Answerc) Find the angle α of cable 1 with the horizontal. Response

The pendulum in (Figure 1) consists of a 1.5-kg disk and slender rods AB and DC which have a mass per unit length of 2 kg/m. Assume d = 0.8 m. Figure 0.2 m- A d -0.5 m- B 1 of 1 D Part A Determine the length L of DC so that the center of mass is at the bearing O. Express your answer to three significant figures and include the appropriate units L = 7.39 HA Part B m Submit Previous Answers Request Answer Ⓡ X Incorrect; Try Again; 4 attempts remaining Io = 78.7 V=| ΑΣΦ. 11 | vec ? What is the moment of inertia of this assembly about an axis perpendicular to the page and passing through point O? Express your answer in kilograms multiplied by squared meter to three significant figures. Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining ? Review kg.m²

Find the torque T, in Nm, that will keep the mechanism balanced at q = 30 degrees in the system shown. The limbs AE and CD are connected to each other at their midpoints, each having a length of L = 3.7 meters and a mass of m = 117 kg. The mass of the upper horizontal platform-shaped limb is 248 kg and the mass of the car is 1.123 kg and they have the centers of gravity shown in the figure.

Choose the following systems that are equivalent to the one shown. Choose all that apply. (Remember conditions for equivalency require the sum of forces to be equal and the sum of moments about on arbitrary point to be equal) 50 N DA OB. OC OD. 1m 1 m 1 m 50 N 1 m 50 N 1 m 100 N 1 m 50 N 1m 50 N 1 m 50 N-m 1 m 100 N-m 1 m

Draw the free-body diagram of CBA and DB

The figure shows the Russel fracture traction device and a mechanical model of the leg. The leg is held in balance in the position indicated by the two weights attached to the two cables. The combined weight of the leg and cast is W=180 N. The distance between the points A and B where the cables are attached to the leg is given as L=100 cm and the angle of the leg with the horizontal is given as γ=8°. Point C is the center of gravity of the cast and leg at three quarters of the L measured from point A (3L/4= 75 cm). The angle that cable 2 makes with the horizontal is measured as β=50°. Accordingly, in order for the leg to remain in balance in the shown position; a) Find the tensile force T1 in cable 1. (Write your result in N)b) Find the tensile force T2 in cable 2. (Write your result in N)c) Find the angle α of cable 1 with the horizontal.

If mass of 5 kg is attached to a spring with k = 5 N/m and c = 10Ns / m. At t = 0 the mass is 0.1 m below its equilibrium with v = 0.2 m/s toward the equilibrium position. How many times will it return to equilibrium?

Find the stable equilibrium position of the system described in Prob. 10.56 if m = 2.06 kg.

please explain how to do with answers please thanks