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A 1.66 x 1.19 m rectangular piece of plywood is horizontally mounted in such a way that it can be spun about its center. There is a 0.3474 N-m torque while it is rotating due to friction in the bearings. If it is set spinning at a rate of 37.3 rpm and takes 38.6 s to come to a stop, what is the mass of the board?

kg

A 1.01 x 0.88 m rectangular piece of plywood is horizontally mounted in such a way that it can be spun about its center. There is a 0.3571 N-m torque while it is rotating due to friction in the bearings. If it is set spinning at a rate of 69.8 rpm and takes 13.6 s to come to a stop, what is the mass of the board?

kg

A 1.39 x 1.41 m rectangular piece of plywood is horizontally mounted in such a way that it can be spun about its center. There is a 0.6098 N-m torque while it is rotating due to friction in the bearings. If it is set spinning at a rate of 68.4 rpm and takes 37.6 s to come to a stop, what is the mass of the board?

kg

A 1.91 x 0.94 m rectangular piece of plywood is horizontally mounted in such a way that it can be spun about its center. There is a 0.5458 N-m torque while it is rotating due to friction in the bearings. If it is set spinning at a rate of 77.5 rpm and takes 50.4 s to come to a stop, what is the mass of the board?

kg

A 1.13 x 0.73 m rectangular piece of plywood is horizontally mounted in such a way that it can be spun about its center. There is a 0.2738 N-m torque while it is rotating due to friction in the bearings. If it is set spinning at a rate of 55.5 rpm and takes 13.2 s to come to a stop, what is the mass of the board?

kg

A 1.82 x 0.56 m rectangular piece of plywood is horizontally mounted in such a way that it can be spun about its center. There is a 0.2564 N-m torque while it is rotating due to friction in the bearings. If it is set spinning at a rate of 43.1 rpm and takes 27.1 s to come to a stop, what is the mass of the board?

kg