2. A stone is dropped from the upper observation deck of the CN Tower, 450 meters above the ground. (a) Find the distance of the stone above the ground level at time t. (b) How long does it take the stone to reach the ground? (c) With what velocity does it strike the ground?

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2. A stone is dropped from the upper observation deck of the CN Tower, 450 meters above the ground.
(a) Find the distance of the stone above the ground level at time t.
(b) How long does it take the stone to reach the ground?
(c) With what velocity does it strike the ground?
(d) If the stone is thrown downward with a speed of 5 meters per second, how long does it take to reach the ground?
Transcribed Image Text:2. A stone is dropped from the upper observation deck of the CN Tower, 450 meters above the ground. (a) Find the distance of the stone above the ground level at time t. (b) How long does it take the stone to reach the ground? (c) With what velocity does it strike the ground? (d) If the stone is thrown downward with a speed of 5 meters per second, how long does it take to reach the ground?
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