A stone is dropped from the upper observation deck of a tower,150 m above the ground. (Assume g = 9.8 m/s2.) (a) Find thedistance (in meters) of the stone above ground level at time t. (d)If the stone is thrown downward with a speed of 7 m/s, how longdoes it take to reach the ground? (Round your answer to two decimalplaces.)
