10 SES Projectiles

What is the optimal release angle if the release height is above the landing height?

• 30 degrees

• 45 degrees

• 60 degrees

• 70 degrees

What factor does not affect the trajectory of a projectile?

• Angle of release

• Initial speed

• Mass of the object

• Air resistance

Which of the following is not a characteristic of a projectile motion?

• Vertical acceleration is constant

• Horizontal velocity is constant

• Path followed is a straight line

• Maximum height is achieved at the midpoint of the trajectory

If the release height is below the landing height, what release angle is considered optimal?

• 30 degrees

• 45 degrees

• 60 degrees

• 90 degrees

How does the speed of release affect the distance gained by a projectile?

• Decreases distance

• No effect on distance

• Increases distance

• Reduces flight time

What largely determines the speed of release for a projectile?

• Projectile's weight

• Air resistance

• Combination of mass of object and foce applied

• Gravity

What does the release angle of 45 degrees result in, assuming the release and landing points are at the same elevation?

• Maximum horizontal distance

• Minimum horizontal distance

• Maximum vertical distance

• Minimum vertical distance

What happens if the release angle is too high for a given activity

• Increased distance gained

• Poor distance gained

• Longer flight time

• Shorter flight time

If the release angle is too low for a given activity, what is the likely outcome?

• Poor flight time and distance

• Increased distance gained

• Maximum height achieved

• Reduced velocity

How is the height of release defined in relation to the ground?

• Distance below ground

• Distance above ground

• Equal to the landing height

• Unrelated to the landing height