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1. A ball is dropped from a height of 30 m above the ground. a. b. Neglecting air resistance, how long does it take

1. A ball is dropped from a height of 30 m above the ground. a. b. Neglecting air resistance, how long does it take for the ball to hit the ground? Suppose the ball in Part a was thrown downwards with an initial velocity of 10 m/s instead of being dropped. How long does it take for the ball to hit the ground in this case?

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