Separation is the propagation method in which these natural structures are simply removed from the parent plant and planted to grow on their own. When one of these structures is cut into sections that will then grow into a new plant the method is referred to as division.
Answers:
a) 
b) 
c) 
Explanation:
A unit vector is a vector whose magnitude (length) is equal to 1. This kind of vector is identified as
and the way to calculate is as follows:

Where:
is the vector
is the magnitude of the vector
Having this information clarified, let's begin with the answers:
a) Force Vector

Magnitude of
:

<u />
<u>Unit vector:</u>



b) Displacement Vector

Magnitude of
:

<u />
<u>Unit vector:</u>



c) Velocity Vector

Magnitude of
:

<u />
<u>Unit vector:</u>



Answer:
80.386 degrees
Explanation:
We use the cosine equation here (which is the adjacent side of the unknown angle divided by the hypotenuse
The adjacent side = 699ft
The hypotenuse = 1034ft
using cos∅ = Adjacent/hypotenuse
where ∅ is the unknown angle
cos ∅ = 699/1034 = 0.167
∅ = arccos 0.167 = 80.368°
As easy as one can imagine