Question
The speed of the tip of the minute hand on a
town clock is 0.00136 m/s.
(a)What is the speed of the tip of the second
hand of the same length?
Answer in units of m/s.
(b)What is the centripetal acceleration of the tip
of the second hand?
Answer in units of m/s2
town clock is 0.00136 m/s.
(a)What is the speed of the tip of the second
hand of the same length?
Answer in units of m/s.
(b)What is the centripetal acceleration of the tip
of the second hand?
Answer in units of m/s2
Answers
Damon
60 times as fast
2 pi r in 60 seconds is the speed which we got in part a
so we can solve for r
then
Ac = v^2/r
2 pi r in 60 seconds is the speed which we got in part a
so we can solve for r
then
Ac = v^2/r