Answer:
0.095 hours = 5.7 mins
Explanation:
from the questions we are given the following:
distance (s) = 4.7 km/h
maximum speed of boat with respect to the water (S) = 12.7 km/h
speed of flowing water = 4.7 km/h
minimum crossing time =?
the minimum crossing time can be gotten from the formula
time = [tex]\frac{distance}{max speed of the boat}[/tex]
in this question we would not be considering the speed of the flowing water because we were told to find the minimum time to cross with a boat moving at a maximum speed with respect to the flowing water
time = [tex]\frac{1.2}{12.7}[/tex]
= 0.095 hours = 5.7 mins
