The velocity of a particle moving along the x axis changes from vi to vf.For which values of vi and vf is the total work done on the particle positive?
A) vi = 5m/s, vf = 2m/s
B) vi = 5m/s, vf = -2m/s
C) vi = -5m/s, vf = -2m/s
D) vi = -5m/s, vf = 2m/s
E) vi = -2m/s, vf = -5m/s
Correct Answer:
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