A particle's position is given by x = 6.00 - 9.00t + 3t², in which x is in meters and t is in seconds. (a) What is its velocity at t = 1 s? (b) Is it moving in the positive or negative direction of x just then? (c) What is its speed just then? (d) Is the speed increasing or decreasing just then? (Try answering the next two questions without further calculation.) (e) Is there ever an instant when the velocity is zero? If so, give the time t; if not, answer "O". (f) Is there a time after t = 3s when the particle is moving in the negative direction of x? If so, give the time t; if not, answer "O". (a) Number Units (b) (c) Number Units

A particle's position is given by x = 6.00 - 9.00t + 3t², in which x is in meters and t is in seconds. (a) What is its velocity at t = 1 s? (b) Is it moving in the positive or negative direction of x just then? (c) What is its speed just then? (d) Is the speed increasing or decreasing just then? (Try answering the next two questions without further calculation.) (e) Is there ever an instant when the velocity is zero? If so, give the time t; if not, answer "O". (f) Is there a time after t = 3s when the particle is moving in the negative direction of x? If so, give the time t; if not, answer "O". (a) Number Units (b) (c) Number Units

Name: A particle's position is given by x = 6.00 - 9.00t + 3t2, in which x
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Description: A particle's position is given by x = 6.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) VWhat is its velocity at t = 1 s? (b) Is itmoving in the positive or negative direction of x just then? (c) What is its speed just then? (d) I

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter3: Motion In Two Dimensions

Section: Chapter Questions

Problem 17P: A soccer player kicks a rock horizontally off a 40.0-m-high cliff into a pool of water. If the...

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