A child sits on a merry-go-round turning with uniform circular motion in a counterclockwise direction. At time t1 = 2 s, the child's velocity is = (2i +4j)(m/ s). The child sits 2.5 m from the center 4. %3D of rotation. a. At t1, what is the centripetal acceleration of the child? b. If the child maintained her speed at t1, what would be the period of her motion? c. However, the child changes her speed. At t2 = 5 s, the child's velocity is i=(-3î – 4j) (m/ s). What is %3D the magnitude of the average acceleration between t, and t2? d. Draw a circle showing where the child is located at t1 and t2.

A child sits on a merry-go-round turning with uniform circular motion in a counterclockwise direction. At time t1 = 2 s, the child's velocity is = (2i +4j)(m/ s). The child sits 2.5 m from the center 4. %3D of rotation. a. At t1, what is the centripetal acceleration of the child? b. If the child maintained her speed at t1, what would be the period of her motion? c. However, the child changes her speed. At t2 = 5 s, the child's velocity is i=(-3î – 4j) (m/ s). What is %3D the magnitude of the average acceleration between t, and t2? d. Draw a circle showing where the child is located at t1 and t2.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And Gravitation

Section: Chapter Questions

Problem 15P: A car initially traveling eastward turns north by traveling in a circular path at uniform speed as...

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