Question

Hector drew the diagram below to illustrate projectile motion.

Answer 1

Answer

He should make the arrow for “Path” curve downward.

Explanation

The force of gravity is usually directly downward. So from the diagram, it is correctly labelled.

If the object was given a horizontal force, the direction of the inertial is also correct. Inertial is the force the resist the change of state of motion.

What Hector should change is the path followed by the object. It will be a curve not a straight line as it is drawn.

The correct answer is He should make the arrow for “Path” curve downward.

Answer 2

Let us review the answers given.
1. He should switch the labels "Gravity" and "Inertia".
   These labels are correct, so no change is required.

2. He should make the arrow for "Path" curve downward.
   This statement is correct.

3. He should switch the labels "Inertia" and "Path".   
   No change is required.

4. He should make the arrow for "Inertia" curve downward.
    This statement is incorrect.

Answer:
Hector should make the arrow for "Path" curve downward as shown in the figure.