Problem 16PE

Olympic ice skaters are able to spin at about 5 rev/s.

(a) What is their angular velocity in radians per second?

(b) What is the centripetal acceleration of the skater’s nose if it is 0.120 m from the axis of rotation?

(c) An exceptional skater named Dick Button was able to spin much faster in the 1950s than anyone since—at about 9 rev/ s. What was the centripetal acceleration of the tip of his nose, assuming it is at 0.120 m radius?

(d) on the magnitudes of the accelerations found. It is reputed that Button ruptured small blood vessels during his spins.

Problem 16PE

Solution 16 PE

Step 1 :

In this question, we need to find angular velocity from in

Data given

Angular velocity

In the second we need to find centripetal acceleration

Data given

Angular velocity

Axis of rotation

In the third part, we need to find centripetal acceleration at the tip of nose

Data given

Angular velocity

radius

In the fourth part based on acceleration obtain we need to justify if it can rupture blood vessels