   Chapter 13.4, Problem 36E

Chapter
Section
Textbook Problem

# (a) If a particle moves along a straight line, what can you say about its acceleration vector?(b) If a particle moves with constant speed along a curve, what can you say about its acceleration vector?

(a)

To determine

To describe: The acceleration vector, when a particle moves along a straight line.

Explanation

Formula used:

Write the expression for acceleration in terms of tangential and normal components.

a=vT+kv2N (1)

Here,

v is the tangential component of acceleration, and

kv2 is the normal component of acceleration.

If a particle moves along a straight line, that is k=0

(b)

To determine

To describe: The acceleration vector, when a particle moves with constant speed.

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