2 years ago

The second hand on a clock is 3.00 cm long. What is the speed of the outermost tip of that second hand

1 answer:

4 0

In 60 minutes or 3600 seconds, the tip of the minute hand traverses the circumference of a circle with radius 3.00 cm, so it moves with a tangential speed of

(3.00 cm)/(3600 s) ≈ 0.00083 cm/s = 8.3 μm/s

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