A stone is dropped from rest at the top of a mine It takes 39 s for a stone to fall to the bottom of a mine shaft. How deep is the shaft?

Most aircraft need an airspeed of about 120 knots (61.7 m/s) to lift off. If a fully laden b-52 starts from rest with an acceleration of 4.16 m/s2, how long a runway does it need to be able to take off?

A tennis ball is dropped from the top of a tall building. A second tennis ball is thrown down from the same building. Make a statement about the acceleration of each tennis ball. ... V= 0 Hide answer choices a A A) The first ball falls with a greater acceleration B B) The second ball falls with a greater acceleration C) They both fall with the same acceleration because they stated from the same height D D) The both fall with the same acceleration because they are in a free fall E E) More information is required

A tennis ball rolled off the edge of a table that has a height of 1.00 m. 0.72 m 1.00 m The ball took 0.45 s to hit the ground 0.72 m from the table. What was the horizontal velocity of the ball as it rolled off the table?