The tip of a pinwheel is 0.24 m from the center. The pinwheel spins 5 times each second. What is the tangential speed of the tip of the pinwheel?

The tip travels one circumference, 2πr, during each rotation. With a radius of 0.24 m and 5 rotations per second, its tangential speed is 2π(0.24 m)(5/s) ≈ 7.5 m/s. Therefore, the correct choice is 7.5 m/s.

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