1. V = 12 - 0.85i = 12.03m/s[-4.05o] = 12.03m/s[4.05o] S. of E.
Tan 4.05 = d/180,
d = 180*Tan4.05 = 12.74 m. downstream.
2. d = sqrt(180^2+12.74^2) = 180.5 m.
d = V * t = 180.5
12.03 * t = 180.5,
t = seconds.
6. A swimmer is capable of swimming at 12 m/s in still water. If she swims directly
across a 180m wide river whose current is 0.85 m/s.
i. How far downstream will she land?
ii. How long will it take her to reach the other side?
1 answer
1 answer