22. Rock formations are as different from one another as human fingerprints. Identical
rock formations have been found along
the East Coast of North America and the
along the North Coast of Africa.
Which of the following statements is best
supported by the information above?
(1) Europe and Africa were once much
closer together.
(2) The rock formations were created
separately.
(3) Sea level was once much lower.
(4) The rocks were formed at different
times.
(5) North America and Africa were once
together.

Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.