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A 1.0 kg mass hangs from a pulley wheel of radius 0.25 m. The pulley wheel rotates counterclockwise and is speeding up at 6.0 rad/s². What is the magnitude of the tension force acting on the mass?
A) 2.5 N
B) 5.0 N
C) 7.5 N
D) 10.0 N