Answer:
The Bionic Woman will win the race by 4 s
Step-by-step explanation:
[tex]v=\dfrac st\quad\implies\quad t=\dfrac sv[/tex]
s = 2 km
t - time of run
v - speed of running
Batman:
v = 3km/min
[tex]t = \dfrac{2\,min}{3\,\frac{km}{min}}=2\,km\cdot\dfrac{min}{3\,km}=\dfrac23\,min = \dfrac23\cdot 60\,s=40\, s[/tex]
The Bionic Woman:
v = 5 km/min
[tex]t = \dfrac{2\,min}{5\,\frac{km}{min}}=2\,km\cdot\dfrac{min}{5\,km}=\dfrac25\,min = \dfrac25\cdot 60\,s=24\, s[/tex]
time from Batman's start: 24 s + 12 s = 36 s
40 - 36 = 4
