I guess I need to find a tangential acceleration or something and and velocity at which the tube breaks and also a time it takes to get to that velocity, but I'm not sure. Can anybody help please? A 600 g steel block rotates on a steel table while attached to a 1.20 m-long hollow tube. Compressed air fed through the tube and ejected from a nozzle on the back of the block exerts a thrust force of 4.81 N perpendicular to the tube. The maximum tension the tube can withstand without breaking is 60.0 N. If the block starts from rest, how many revolutions does the block complete before the tube breaks?