Question

A car is driving 69 miles per hour on a freeway that has lamp posts along the edge. If it takes the car 5 seconds to travel between the lamp posts, how far apart are the lamp posts spaced? Enter your answer in feet and round to two decimals.

Answer 1

In this case, we'll have to carry out several steps to find the solution.

Step 01:

Data:

Car:

velocity = 69 miles / hour

time = 5 seconds

Step 02:

distance:

`dis\tan ce\text{ = }\frac{69\text{ miles}}{hour}\cdot5\sec \cdot(\frac{1\text{ hour}}{3600\text{ sec}})\cdot(\frac{5280ft}{1\text{miles}})`

distance = 506 ft

The answer is:

The distance between the lamp posts is 506 ft