Question
A ball is dropped from the top of a building which is 39.2m above the level of the sidewalk.
How long does it take for the ball to reach the sidewalk?
How long does it take for the ball to reach the sidewalk?
Answers
bobpursley
hf=hi+vi*t-4.9t^2
0=39.2+0-4.9t^2
solve for time t.
0=39.2+0-4.9t^2
solve for time t.