Question

what is a force that acts upon a projectile launched into the air?
trajectory
gravity
friction
question 2
1 pts
true or false. a projectile is an object that once set in motion, continues in motion by its own inertia.
false
true
question 3
1 pts
what is the path of a projectile called?
track
acceleration
friction
trajectory

Explanation:

Question 1

When a projectile is launched, gravity acts on it. Trajectory is the path, not a force. Friction (like air resistance) can also act but gravity is a fundamental force here.

A projectile, once in motion, continues in motion by its inertia (Newton's first law). There's no external force in the horizontal direction (ideally, ignoring air resistance).

The path of a projectile is called trajectory. Track is a general path term but in physics for projectile, trajectory is the specific term. Acceleration is a rate of change of velocity, friction is a force.

Answer:

Gravity

Question 2