9. Which of the following ideas is true about projectile motion with no air drag?
a. The trajectory will depend on the object's mass as well as its initial velocity and launch angle.
b. v x ² + v y² = constant
c. The horizontal motion is independent of the vertical motion.
d. The acceleration is +g when the object is rising and -g when falling.
e. The total velocity of the object is zero at the point of maximum elevation.
c. the horizontal motion is independent of the vertical motion.
can you explain why i really need to have this answer correct.
this projectile is moving in a typical parabolic path.the horizontal velocity remains constant
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