- #1

Macleef

- 30

- 0

## Homework Statement

A river is 2 km wide and flows at 6 km/h. A motor boat that has a speed of

20 km/h in still water heads out from one bank perpendicular to the current.

A marina lies directly across the river on the opposite bank. Use Geometric

Vectors to solve this problem.

a. How far downstream from the marina will the boat reach the other bank? (Answer: 0.6 km)

b. How long will it take? (Answer: 6 min)

## Homework Equations

The sine and cosine laws.

## The Attempt at a Solution

Here's what I've done so far, I drew the diagram to the problem. I'm not sure if it's correct or not:

And now, I don't know what to do to answer the questions.