H2P-347

v = rω

H2 Physics · JC 2 · Medium · v = rω

The hour hand of a clock is 0.40 m long. Assuming it moves at constant angular speed, what is the speed of the tip of the hour hand?

5.8 × 10 $^{-5}$ m s $^{-1}$
1.5 × 10 $^{-4}$ m s $^{-1}$
2.6 × 10 $^{-3}$ m s $^{-1}$
4.3 × 10 $^{-2}$ m s $^{-1}$

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