PLEASE HELP!!! Part 1) Items "a" through "i" below describe 9 graphs. If all of the speeds are positive, what would each graph look like? Write the words flat line, sloping up, curving up, or curving down.

Part 2) Assume all the speeds are negative.

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s