Complete the passage to describe projectile motion, using “horizontal” or “vertical.” When an object is thrown, the thrower pushes the object. This causes the object to move in a motion. Inertia keeps the ball moving horizontally. The force of gravity acts on the object, causing motion. These two motions cause the motion of the object to curve downward.

In projectile motion, Inertia keeps the object moving horizontally and the force of gravity acts on the object, causing vertical motion.

The complete passage to describe a projectile motion is presented below;

When an object is thrown, the thrower pushes the object. This causes the object to move in a horizontal motion.

Inertia keeps the ball moving horizontally. The force of gravity acts on the object, causing vertical motion.

These two motions cause the motion of the object to curve downward.

Thus, we can conclude that in projectile motion, Inertia keeps the object moving horizontally and the force of gravity acts on the object, causing vertical motion.

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