A river flows due east at 1.00 m/s. A boat crosses the river...?
A river flows due east at 1.00 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 14.0 m/s due north relative to the water.
(a) What is the velocity of the boat relative to shore?
(north of east)
(b) If the river is 320 m wide, how far downstream has the boat moved by the time it reaches the north shore?
- Anonymous9 years agoFavorite Answer
This is a trigonometric like question, and needs a triangle, so I can only show you the answer..
a. And is 14.04 m/s [N85.9E]
tan theta = opposite/adjacent
tan 86.9 = 320 / adjacent
adjacent = 320/tan86.9
= 22.94 m