(Use 4.9t 2 + v0t = s.) a) A bolt falls off an airplane at an altitude of 500 m. Approximately how long does it take the bolt to reach the ground? 10.1 sec b) A ball is thrown downward at a speed of 30 m>sec from an altitude of 500 m. Approximately how long does it take the ball to reach the ground? c) Approximately how far will an object fall in 5 sec, when thrown downward at an initial velocity of 30 m>sec from a plane?

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