A strut of length L 5 3.00 m and mass m 5 16.0 kg is held by a cable at an angle of u 5 30.0 with respect to the horizontal as shown in Figure P8.24. (a) Sketch a force diagram, indicating all the forces and their placement on the strut. (b) Why is the hinge a good place to use for calculating torques? (c) Write the condition for rotational equilibrium symbolically, calculating the torques around the hinge. (d) Use the torque equation to calculate the tension in the cable. (e) Write the x- and y-components of Newtons second law for equilibrium. (f) Use the force equation to find the x- and y-components of the force on the hinge. (g) Assuming the strut position is to remain the same, would it be advantageous to attach the cable higher up on the wall? Explain the benefit in terms of the force on the hinge and cable tension.
7/22/2017 OneNote Online Lecture 3/5/14 Wednesday, March 05, 22:30 PM https://onedrive.live.com/view.aspxref=button&Bsrc=SMIT&resid=36773184373A8F0B!1292&cid=36773184373a8f0b&app=OneNote&authkey=Ao_s… 1/3 7/22/2017 OneNote Online https://onedrive.live.com/view.aspxref=button&Bsrc=SMIT&resid=36773184373A8F0B!1292&cid=36773184373a8f0b&app=OneNote&authkey=Ao_s… 2/3 7/22/2017 OneNote Onlin