   Chapter 4.4, Problem 54E

Chapter
Section
Textbook Problem

# If the units for x are feet and the units for a(x) are pounds per foot, what are the units for d a / d x ? What units does ∫ 2 8 a ( x ) d x have?

To determine

a)

To find:

Explanation

1) Concept:

The unit of dfxdx=unit of f(x)unit of (x).

2) Given:

The units of x are feet and the units of a(x) are pound per foot.

3) Calculation:

To find the unit of dadx

The units of daxdx=unit of a(x)unit of x

The unit of x is feet and unit of a(x) is pound/foot

To determine

b)

To find:

What unit does 28axdx have.

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