Question

Mary and her younger brother Alex decide to ride the carousel at the State Fair. Mary sits on one of the horses in the outer section at a distance of 2.0 m from the center. Alex decides to play it safe and chooses to sit in the inner section at a distance of 1.1 m from the center. The carousel takes 4.8 s to make each complete revolution. (a) What is Mary's angular speed ωM and tangential speed vM? ωM = rev/s vM = m/s (b) What is Alex's angular speed ωA and tangential speed vA? ωA = rev/s vA = m/s

Answer 1

a) w=2PI/4.8, vt=w*r
b) w=2PI/4.8, vt=w*r

Answer 2

a) w = 1/4.8 because it's revs not rads