3
.
REASONING
According to Newton’s second law, Equation 4.1, the average net
force
F
Σ
is equal to the product of the object’s mass
m
and the average acceleration
a
.
The average acceleration is equal to the change in velocity divided by the elapsed time
(Equation 2.4), where the change in velocity is the final velocity
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 Spring '08
 SOFFER
 Mass, Velocity, Average Acceleration, average net force

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