Amelia gives her doll a merry -go-around ride bn an old phonograph set at 45 rpm. The doll is 17 cm fromi the central axis (Report ALLanswers to 4 significant figures / 4 s.t.)(a) What is the angular speed of the doll in rad/s? w=rad/s(b) What is the linear speed of a point on the phonograph at the location of the doll? v =ms(C) What is the centripetal acceleration of the doll? a, =ms2(d) When Amelia switches ofT the phonograph, the doll makes 20 revolutions before coming to a stop What is the angular acceieration of thephonograph? a =rad/s?

Given : ω = 45 rpm r = 17 cm = 0.17 m

Answered: Amelia gives her doll a merry-go-around…

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 36P: The angular position of a rod varies as 20.0t2radians from time t=0 . The rod has two beads on it as...

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