1 - University Physics with Modern Physics

Question

Question: Starting with the definition 1 in. = 2.54 cm, find the number of (a) kilometers in 1.00 mile and (b) feet in 1.00 km.

 

Step-by-Step Solution

Answer

(a)1 mile is equivalent to 1.609 km. 

(b)1 feet is equivalent to 0.3048 km. 

Step 1: Different units of distance

Here, Inch, Kilometer, mile and feet all are the units which belong to distance, but the standard unit of distance is meter. 

Here is some conversion between the units.

$\begin{array}{l}1\text{\hspace{0.17em}km}=1000\text{\hspace{0.17em}m}\\ 1\text{\hspace{0.17em}mile}=1.609\text{\hspace{0.17em}km}\\ 1\text{\hspace{0.17em}km}=\text{3280.84\hspace{0.17em}feet}\end{array}$

 

Step 2: Conversion of mile into kilometer

1 mile is defined as measurement of 1.609 km.

A mile is a unit of measurement that equals 5,280 feet or 1.609344 kilometres. 

It's a frequent way to compare distances between locations in the United States and the United Kingdom.

Step 3: Conversion of kilometer into feet

As per the conversion 1 km is also called as 3280.84 feet. 1 Feet can be defined as the 0.3048 meters according to SI unit.

Hence it can be said that 1 mile is defined as measurement of 1.609 km. The conversion 1 km is also called as 3280.84 feet.