vector problems

1
v i =1 m s v f =3 m s Find v F 1 =1N F 2 =3N Find F 1 + F 2 F 1 =1N F 2 =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 I don’t get the difference. Which ones involve addition? Subtraction? How do you do them?

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Page 1: Vector problems

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?