Question

Find the angular speed of the minute hand of a clock.

Answer 1

Explanation:

The minute takes one hour = 60 s/min × 60 min = 3600 s to go around, so ω = 2π / 3600 rad. s-1 = 1.7 × 10-3 rad. s-1. The hour hand takes 12 hours = 12 hours × 60 min/hour × 60 s/min = 43200 s to do 2π radians, so ω = 2π rad/43200 s = 1.5 × 10-4 rad.

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