A stone is suspended from the free end of a wire that is wrapped around the outer rim of a pulley, as shown in the figure. The pulley is a uniform disk with mass 11.3kg and radius 49.0cm and turns on frictionless bearings. You measure that the stone travels a distance 12.3m during a time interval of 2.50s starting from rest. 1. Find the mass of the stone. 2. Find the tension in the wire. Free fall acceleration = 9.80 m/s^2 Figure: http://tinyurl.com/cpht4rr I'm not to sure what formula to use for this?