Tomaz realized that the tip of a second hand on a clock rotates about the center of the clock. He watched the

Question

Tomaz realized that the tip of a second hand on a clock rotates about the center of the clock. He watched the second hand rotate around the center of the clock for 15 seconds. Which describes the rotation he observed?
270 degrees clockwise rotation
90 degrees clockwise rotation     
180 degrees rotation
90 degrees counterclockwise rotation

GPT-5 mini · Answer

90 degrees clockwise rotation.

Reason: the second hand moves 360° in 60 seconds → 6° per second. In 15 seconds it turns 6°×15 = 90°, clockwise.

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