Application of Vectors

Question

Suppose that a boat weighs

400pounds and is on a ramp inclined at​ 30°. Represent the force due to​ gravity,

F​, using

F=−400j as shown in the figure to the right.

a. Write a unit vector along the ramp in the upward direction.

b. Find the vector projection of F onto the unit vector from part a.

c. What is the magnitude of the vector projection in part​ b? What does this​ represent?

Answer 1

Where is the figure?