A 0.70-kg mass swings in a horizontal circle of 0.60 meter radius, held in by the tension in the string tied to it. If the maximum tension the string can withstand is 90 N, find the maximum speed the mass can have? Circular Motion und Gravitation ow all work: Include your equations, substitution and units chart below contains several constant and data which may be used in the following problems. A 0.70-kg mass swing in a horizontal circle of .60 meter radius, held in by the tension in the ring tied to it. If the maximum tension the string 52 kg astronaut orbits about the gravitational force of attraction is the to be 480 N. Calculate the gravitation