- #1
Lfrizz
- 16
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The radius of the circle traced out by the second hand on a clock is 6.00 cm. In a time t the tip of the second hand moves through an arc length of 19.0 cm. Determine the value of t in seconds.
Ok, so I know how to find θ: s/r. And I know that Angular Velocity is θ/Δt. I am confused on how I get the angular velocity so I can find the change in time. Also, do I need to convert anytihng into radians, or is it already in radians since it's the RADIUS of the circle... I feel really dumb asking this since I know it is so simple, but I am confused.
Thanks.
Leah
Ok, so I know how to find θ: s/r. And I know that Angular Velocity is θ/Δt. I am confused on how I get the angular velocity so I can find the change in time. Also, do I need to convert anytihng into radians, or is it already in radians since it's the RADIUS of the circle... I feel really dumb asking this since I know it is so simple, but I am confused.
Thanks.
Leah