vi = 1m

s vf = 3m

s

Find ∆v

F1 = 1NF2 = 3N

Find F1 + F2

F1 = 1NF2 = 3N

Find a 3rd force that will cause forces to be balanced.

A student says:I’m confused by

these vector problems—

I’ve seen these three different problems,

and Idon’t get the difference.

Which ones involve addition?

Subtraction? How do you do

them?