A particle's position is given by x = 6 − 9t + 1t2 (where t is in seconds and x is in meters). 1. What is its velocity at t = 1 s? (Indicate the direction with the sign of your answer.) -----m/s 2. What is its speed just then? -----m/s 3. Is there ever an instant when the velocity is zero? If so, give the time t; if not, say NONE

A particle's position is given by x = 6 − 9t + 1t2 (where t is in seconds and x is in meters). 1. What is its velocity at t = 1 s? (Indicate the direction with the sign of your answer.) -----m/s 2. What is its speed just then? -----m/s 3. Is there ever an instant when the velocity is zero? If so, give the time t; if not, say NONE

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Description: A particle's position is given by x = 6 − 9t + 1t2 (where t is in seconds and x is in meters).1. What is its velocity at t = 1 s? (Indicate the direction with the sign of your answer.)-----m/s2. What is its speed just then?-----m/s3. Is there ever an

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 15CQ: Plus and minus signs are used in one-dimensional motion to indicate direction. What is the sign of...

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