the second hand on a clock is 6 inches long. if it moved a length of approximately 9.4 inches (arc length) then how many seconds had elapsed?

Answer 1

In 1 minute the second hand would make I complete revolution which is the equivalent of the circumference which is 12pi inches The distance travelled in 1 second would be (12 pi/60)inches/second

To find the number of seconds this would take divide this into 9.4 seconds

9.4 Inches/ (12pi/60)inches/second= 14.96 seconds