Homework Answers
velocity of river relative to bank vrB = -3.22j
velocity of boat realtive to river Vbr = -8.57 i m/s
velocity of boat relative to bank VbB = vr + vb = -3.22j - 8.57 i
speed = sqrt(3.22^2 + 8.57^2) = 9.15 m/s
=============================
time taken to cross river t = 52.9/8.57
distance travelled down stream d = Vr*t = 3.22*52.9/8.57 = 19.87
m
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