Problem:
Donald wants to run 800 meters in 2 minutes. How many meters per second must Donald run to achieve his goal?
Solution:
Notice that 2 minutes are 120 seconds. Now, remember the formula of velocity:
[tex]v\text{ = }\frac{d}{t}[/tex]where d is the distance and t is the time. So, replacing the given values we get:
[tex]v\text{ = }\frac{d}{t}\text{ = }\frac{800\text{ m}}{120\text{ s}}\text{ }\approx\text{ 7 m/sec}[/tex]then the correct answer is
7 m/sec
