The system in the figure is in equilibrium. A concrete block of mass 270 kg hangs from the end of the uniform strut of mass 37.5 kg. For angles = 30.80 and 0 = 65.6, find (a) the tension Tin the cable and the (b) horizontal and (c) vertical components of the force on the strut from the hinge. Strut Ilinge (a) Number i Units N (b) Number 1 1215 Units N (c) Number 94670 Units NYour answer is partially correct. A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a vertical axle through the center of the disk. The platform has a radius of 3.69 m and a rotational inertia of 463 kg.m about the axis of rotation. A 71.5 kg student walks slowly from the rim of the platform toward the center. If the angular speed of the system is 2.65 rad/s when the student starts at the rim, what is the angular speed when she is 1.95 m from the center? Number i 1.33 Units rad/sCurrent Attempt in Progress The figure shows three 0.0102 kg particles that have been glued to a rod of length L=6.36 cm and negligible mass. The assembly can rotate around a perpendicular axis through point O at the left end. If we remove one particle (that is. 33% of the mass), by what percentage does the rotational inertia of the assembly around the rotation axis decrease when that removed particle is (a) the innermost one and (b) the outermost one? Axis O -dad--d- (a) Number Units (b) Number UnitsA small ball of mass 0.77 kg is attached to one end of a 1.80-m-long massless rod, and the other end of the rod is hung from a pivot. When the resulting pendulum is 33 from the vertical, what is the magnitude of the torque about the pivot? Number Units