In the first minute, the flywheel will make 170 revolutions.
In the second minute, the flywheel will make (2/5) * 170 = 68 revolutions.
In the third minute, the flywheel will make (2/5) * 68 = 27.2 revolutions. Since the flywheel can only make complete revolutions, we round this down to 27 revolutions.
In the fourth minute, the flywheel will make (2/5) * 27 = 10.8 revolutions. Rounded down, this is 10 revolutions.
In the fifth minute, the flywheel will make (2/5) * 10 = 4 revolutions.
After the fifth minute, the flywheel will no longer be rotating, since the number of revolutions will be less than 1.
Therefore, the total number of revolutions the flywheel will make before coming to a stop is:
170 + 68 + 27 + 10 + 4 = 279.