by this time you should know that the height and velocity functions will be
h = 725 + 10t - 16t^2
v = 10 - 32t
and you should be able to handle this little gem.
A stone is thrown straight up from the edge of a roof, 725 feet above the ground, at a speed of 10 feet per second.
A. Remembering that the acceleration due to gravity is -32 feet per second squared, how high is the stone 5 seconds later?
B. At what time does the stone hit the ground?
C. What is the velocity of the stone when it hits the ground?
1 answer