Which statements are explained by Newton’s law of universal gravitation? Heavier objects fall faster than lighter objects. The strength of Earth’s gravity decreases as an object gets farther from Earth. The strength of gravity depends on an object’s mass. Mass and weight are the same quantities.

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.