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Find ∆v                           A student says:
                                                  I’m confused by
          m                                              these
vi = 1                                 m
           s                  vf = 3            vector problems—
                                        s
                                               I’ve seen these three
                                                 different problems,
                 Find F1 + F2                            and I
                                                     don’t get the
F1 = 1 N                                              difference.
                        F2 = 3 N
                                                Which ones involve
 Find a 3rd force that will cause forces to be         addition?
                   balanced.                         Subtraction?
 F1 = 1 N
                                                  How do you do
                        F2 = 3 N
                                                        them?

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Vector problems

  • 1. Find ∆v A student says: I’m confused by m these vi = 1 m s vf = 3 vector problems— s I’ve seen these three different problems, Find F1 + F2 and I don’t get the F1 = 1 N difference. F2 = 3 N Which ones involve Find a 3rd force that will cause forces to be addition? balanced. Subtraction? F1 = 1 N How do you do F2 = 3 N them?