Two balls are thrown upward from the edge of a cliff that is 432 ft above the ground. The first is thrown with an initial speed of 48 ft/s, and the other is thrown a second later with a speed of 24 ft/s. Lett be the number of seconds passed after the first ball is thrown. Determine the value of t at which the balls pass, if at all. If the balls do not pass each other, type "never" (in lower-case letters) as your answer. Note: Acceleration due to gravity is –32 ft/sec. t A stone is dropped from the upper observation deck (the Space Deck) of the CN Tower, 450 meters above the ground. (a) Find the distance s of the stone above ground level at time t, where time is measured in seconds. s(t) (b) How long (in seconds) does it take the stone to reach the ground? Time needed = seconds (C) With what velocity (in m/s) does it strike the ground? Velocity = meters per second (d) If the stone is thrown downward with a speed of 4 m/s, how long does it take (in seconds) for the stone to reach the ground? Time needed = seconds