Dear student
 
For question 3, there is no passage given.
Please check and repost the question with complete information
						

							
Dear student 
When you launch a projectile into the air, you can use physics to determine how long it will remain airborne. Because the force of gravity only acts downward that is, in the vertical direction you can treat the vertical and horizontal components of the flight path separately. As a result, you can calculate things like the time the projectile will be airborne before it strikes the ground.
						

							
Dear Student,
You can calculate things like the time the projectile will be airborne before it strikes the ground.
When you launch a projectile into the air, you can use physics to determine how long it will remain airborne. Because the force of gravity only acts downward that is, in the vertical direction you can treat the vertical and horizontal components of the flight path separately.
 
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