Question

Donald wants to run 800 meters in 2 minutes. How many meters per second must Donald run to achieve his goal? 0 63 m/sec o 5 m/sec o 6 m/sec W o 7 m/sec

Answer 1

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:

`v\text{ = }(d)/(t)`

where d is the distance and t is the time. So, replacing the given values we get:

`v\text{ = }(d)/(t)\text{ = }\frac{800\text{ m}}{120\text{ s}}\text{ }\approx\text{ 7 m/sec}`

then the correct answer is

7 m/sec