A ball is projected upward at time t = 0.0 s, from a point on a roof 60 m above the ground. The ball rises, then falls until it strikes the ground. The initial velocity of the ball is At time what is the acceleration of the ball? Neglect air resistance. zero -9.8 m/s2 +9.8 m/s2 +4.9 m/s2
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A ball is projected upward at time t = 0.0 s, from a point on a roof 60 m above the ground. The ball...
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