Asked by beatriz
A stone is dropped from the upper observation deck (the space deck) of the CN Tower, 450m above the ground.
(a) How long does it take the stone to hit the ground?
(b) If the stone is thrown downward with a speed of 5m/s, how long does it take to reach the ground?
(a) How long does it take the stone to hit the ground?
(b) If the stone is thrown downward with a speed of 5m/s, how long does it take to reach the ground?