Final answer:
The phrase "angled upward" typically describes projectile motion, relevant to objects thrown or projected into the air, like a ball, and is subject to gravity's acceleration. This phrase can describe all options given, but it is most closely associated with the trajectory of a thrown ball, which is a classic example of projectile motion with a parabolic path.
Step-by-step explanation:
The phrase "angled upward" is descriptive of a trajectory that is directed above the horizontal plane. In physics, this is often associated with projectile motion, which is the motion of an object thrown or projected into the air, where it is subject only to the acceleration of gravity. All four options given: a) An object in projectile motion, b) A rocket taking off, c) The trajectory of a thrown ball, and d) The flight path of an airplane, can be described as "angled upward" at some point in their motion. However, the best representation of this phrase is a trajectory that forms a parabola, like that of a thrown ball. This is because the motion of a thrown ball is a classic example of projectile motion, where the ball moves upward and forward, reaching a maximum height before descending back to the ground, and therefore creating the smooth curve that is angled upward.