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blagie [28]
3 years ago
15

WILL GIVE BRAINLIEST

Mathematics
2 answers:
Harman [31]3 years ago
8 0

Answer: the speed boats speed in km / h is:

v = 3062.8 Km / h




storchak [24]3 years ago
6 0
We have the following kinematic equations that model the problem:
 steam boat:
 r1 = (36.8) * t
 speed boat:
 r2 = v * (t-1.75)
 The distance between the boats is:
 d = r2-r1 = v * (t-1.75) - (36.8) * t
 Substituting t = 1.8 and d = 86.9 we have:
 86.9 = v * (1.8-1.75) - (36.8) * 1.8
 We clear the speed:
 v = (86.9 + (36.8) * 1.8) / ((1.8-1.75))
 v = 3062.8 Km / h
 Answer:
 
the speed boats speed in km / h is:
 
v = 3062.8 Km / h
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