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A solid cylinder of diameter 14.8 cm is spinning at a rate of 429 rpm. If a board leans against the outside providing a frictional force of 58.4 N it will stop in 1.316 s. What is the mass of the cylinder?

kg

A solid cylinder of diameter 9.2 cm is spinning at a rate of 186.9 rpm. If a board leans against the outside providing a frictional force of 21.48 N it will stop in 0.3231 s. What is the mass of the cylinder?

kg

A solid cylinder of diameter 15.4 cm is spinning at a rate of 669.6 rpm. If a board leans against the outside providing a frictional force of 22.47 N it will stop in 6.667 s. What is the mass of the cylinder?

kg

A solid cylinder of diameter 14.2 cm is spinning at a rate of 883.4 rpm. If a board leans against the outside providing a frictional force of 47.68 N it will stop in 2.126 s. What is the mass of the cylinder?

kg

A solid cylinder of diameter 12 cm is spinning at a rate of 607.3 rpm. If a board leans against the outside providing a frictional force of 46.88 N it will stop in 0.6487 s. What is the mass of the cylinder?

kg

A solid cylinder of diameter 8.8 cm is spinning at a rate of 988.2 rpm. If a board leans against the outside providing a frictional force of 46.35 N it will stop in 0.6989 s. What is the mass of the cylinder?

kg