Two Forces Acting on a Point

Section 6.5

Can you set up parts (a) and (b) for me to do on my own this weekend? Thanks.

This question ends Section 6.5 for us.

 

(a)

The first is F1=<5N,3N>
and the second is F2=<4N,2N>
you know how to plot it

(b)
the resultant force: F1+F2

 

If you are expected to do a problem like this, then you are expected to know that a force with "a horizontal component of 5 Newtons and a vertical component of 3 Newtons" is represented on the graph by the vector from (0, 0) to (5, 3) and might be written as <5, 3> (many people would write the vector as (5, 3) but I prefer the "angle brackets" to distinguish a vector from a point). Similarly, a force with "a horizontal component of 4 Newtons and a vertical component of 2 Newtons" is represented on a graph by the vector from (0, 0) to (4, 3) and might be written as <4, 3>.

The sum of vectors <a, b> and <c, d> is <a+ c, b+ d>.

 

Thanks. I will review your hints this weekend. It's impossible for me to do precalculus during the week.