pre calc
posted by jim .
The minute hand of a clock is 7 inches long. How far does the tip move in 16 minutes?
a.56/15pi
b.8/105pi
c.4/105pi
d.28/15pi

in 60 minutes, the minute hand moves 2π radians
in 16 minutes it moves 16(2π/60) or 8π/15 radians
arc = rĂ˜ = 7(8π/15) = 56π/15
looks like a)