Question

A 500 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 4.91 N perpendicular to the tube. The maximum tension the tube can withstand without breaking is 60.0 N . Assume the coefficient of kinetic friction between steel block and steel table is 0.60. (Figure 1) Air N / 1.2 m Tube Pivot

If the block starts from rest, how many revolutions does it make before the tube breaks?

Answer 1

The solution of the problem is given below

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