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A ball is projected upward at time t = 0.0 s, from a point on a roof 10 m above the ground. The ball rises, then falls and strikes the ground. The initial velocity of the ball is Consider all quantities as positive in the upward direction. At time the velocity of the ball is closest to:
Select one:
a. +12 m/s
b. -175 m/s
c. -12 m/s
d. +175 m/s
10 years ago

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Anonymous
12
8 years ago

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