In a swimming race, miho swam the first 50 m in 42 s. she swam the second 50 m in 40 s. what was miho's average speed during the race?

a.1.22 m/s

b.1.25 m/s

c.1.19 m/s

d.0.82 m/s

The correct option is a.

Explanation:

In order to find the average speed of Miho during the race we can use the following equation :

(I)

The total distance that Miho swam is the sum of :

The total elapsed time is the sum of :

If we replace the data found in the equation (I) :

c

explanation:

1. the energy lost to disorder metabolism     -entropy

2. related to or possessing motion potential     -kinetic

3. all of the chemical reactions in an organism required for maintenance of the processes of life entropy     -metabolism

4. possible; ability to go into action or perform work kinetic     -potential

5. the study of energy and its transformations thermodynamics     -thermodynamics