Tina is looking out a window and throws marble straight downward toward the sidewalk below at a speed of 4.00 m/s and the window is 38.0 meters above the sidewalk.
What is the speed of the ball (vf) when it hits the ground?
After 1.50s, how far down has the marble traveled?
Assuming no resistance. And since the marble is throne straight downward, then we can apply the simple free fall. 2as = v 2... View the full answer