solve 2 and 3

Formula 4 points A metal rod with a mass of 2.96kg and a length of 1.22m leans against a wall. The rod is at an angle of 20.0 away from vertical. The origin is the point where the rod touches the floor. The magnitude of the torque exerted on the rod around this origin by the force of gravity is N-m. Answer Formula 64 points - A child holds the string of a yo-yo and allows it to unwind as shown. The radius r, is 3.56 times larger than the inner spool radius r,. The inner spool (with radius r,) has a very small mass -- treat it as zero for this problem. Ignore air resistance. The center of the yo-yo has a downward acceleration with a magnitude of _ 2. ----"3 Hint: The yo-yo's mass should cancel out of the equations, and therefore is not needed to solve the