Two ropes hold a 175 N crate as shown in figure below. Find the tension T1 and T2 in the ropes. (Hint: Move the vectors so that they are tail to head to form a triangle. The vector sum of T1 + T2 must equal 175 N for equilibrium.) 42.0° 30.0° T2 Crate Fig. 9.55 175 N Copyright O 2015 Pearson Canada Inc. O T1 = 182.354 N, T2 = 116.533 N O T1 = 165.474 N, T2 = 147.241 N O T1 = 159.354 N, T2 = 136.743 N O T1 = 125.748 N, T2 = 154.257 N

The resaltant of the 3 tensionsin the guy wires anchored at the top of the tower is vertical . Find unkown but equal tension T in the two  wires . All three wires and the tower are in the same vertical plane like the figur below.

5. The figure below represents the anatomy of the lower limb when balanced on your toes and the body weight acts through the tibia. The Achilles Tendon makes an angle (0) of 8° with the vertical and for this foot x1 is 6.2 cm and x2 is 12.3 cm. Calf Muscle Tibia Achilles Tendon Calculate the tension (T) in the Achilles Tendon if a 70 kg man stands on the toes of both feet. Using the values in this example what is the mechanical advantage for this lever and describe what that means in terms of the efficiency of the lever.

Pole AB is 12 m long and its weight, W = 35 kN. It is being lifted using cables BC and BD. When the pole is tilted at an angle of 60° from the x- axis, the resultant force acts at point A. 1. Solve for the tensile force in the cable BC. 2. Calculate the tensile force in the cable BD. B 12 m. 3. Determine the value of the O26 m •4వ m 60° resultant acting at point A. A