9 Questions
The horizontal and vertical components of projectile motion are independent of each other.
True
The maximum range of a projectile is achieved at a launch angle of 45 degrees.
True
Projectile motion can occur in a vacuum or in the presence of air resistance.
True
Projectile motion involves only vertical movement.
False
The time of flight for a projectile is the same for two launch angles that add up to 90 degrees.
True
The maximum height reached by a projectile is directly proportional to the square of the initial velocity.
False
True or false: Projectile motion can be described using the equations of motion for both the x and y components separately?
True
True or false: The time of flight for a projectile is the same for two launch angles that add up to 180 degrees?
False
True or false: The range of a projectile is the same for two launch angles that add up to 90 degrees?
True
Study Notes
Characteristics of Projectile Motion
- The horizontal and vertical components of projectile motion are independent of each other.
- Projectile motion can occur in a vacuum or in the presence of air resistance.
Optimal Launch Angle
- The maximum range of a projectile is achieved at a launch angle of 45 degrees.
Time of Flight
- The time of flight for a projectile is the same for two launch angles that add up to 90 degrees.
False Statements
- Projectile motion involves only vertical movement. (FALSE: Projectile motion involves both horizontal and vertical movement.)
- The time of flight for a projectile is the same for two launch angles that add up to 180 degrees. (FALSE: This is only true for angles that add up to 90 degrees.)
- The range of a projectile is the same for two launch angles that add up to 90 degrees. (FALSE: The range is maximum at a launch angle of 45 degrees.)
Key Relationships
- The maximum height reached by a projectile is directly proportional to the square of the initial velocity.
Test your knowledge of projectile motion with this quiz that covers the independence of horizontal and vertical components, launch angles, and maximum range.
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