Consider the motion along the straight line r(t) = (1, 2, 7) + t(1,1,1). (a) What is the velocity and speed of r? Are they constant? (b) Does the motion s(t) = (2, 3, 8) + t³(1, 1, 1) go along the same straight line? (c) What is the velocity and speed of s? Are they constant?

Consider the motion along the straight line r(t) = (1, 2, 7) + t(1,1,1). (a) What is the velocity and speed of r? Are they constant? (b) Does the motion s(t) = (2, 3, 8) + t³(1, 1, 1) go along the same straight line? (c) What is the velocity and speed of s? Are they constant?

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

Chapter1: Introduction And Vectors

Section: Chapter Questions

Problem 7CQ

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Scalars and Vectors

Scalars and Vectors are the classification of physical quantities that are used to denote various terms in physics.

Question

Consider the motion along the straight line r(t) = (1, 2,7) + t(1,1,1).
(a) What is the velocity and speed of r? Are they constant?
(b) Does the motion s(t) = (2,3,8) + t³(1,1,1) go along the same straight line?
(c) What is the velocity and speed of s? Are they constant?

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