Chapter 11.4, Problem 39PPS

To determine

To convert $46$ feet per second to mile per hour

Answer to Problem 39PPS

  $46$ feet per second is $31.4$ mile per hour

Explanation of Solution

Given:

  $46$ feet per second

Formula Used:

  $1$ foot $=$ $0.000189$ mile

  $1$ sec $=$ $0.000277$ hour

Calculation:

Given: $46$ feet per second

Using the above formula, we have:

  $46$ feet per second $=$ $46\times \frac{0.000189}{0.000277}$ mile per hour

Solving further, we have:

  $46$ feet per second $=$ $31.38$ mile per hour

Converting to the nearest tenth:

  $46$ feet per second $=$ $31.4$ mile per hour

Conclusion:

Hence, $46$ feet per second is $31.4$ mile per hour