The position of a particle is given by the equation ?(?) = t3 − 6t2 + 9t, where t is in seconds and s in meters. a) What is the velocity after 2 s? After 4 s? b) Find the instant when the particle reverses direction c) Determine the time intervals when it is moving to the LEFT? RIGHT? d) Find the initial position and the positions when it changes

The position of a particle is given by the equation ?(?) = t3 − 6t2 + 9t, where t is in seconds and s in meters. a) What is the velocity after 2 s? After 4 s? b) Find the instant when the particle reverses direction c) Determine the time intervals when it is moving to the LEFT? RIGHT? d) Find the initial position and the positions when it changes

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter3: Motion Along A Straight Line

Section: Chapter Questions

Problem 79P: Between t=0 and t=t0 , a rocket moves straight upward with an acceleration given by a(t)=ABt1/2 ,...

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