PROJECTILE MOTION

What happens to the horizontal velocity of a projectile as it goes up?

• It becomes zero.

• It remains the same.

• It decreases.

• It increases.

What happens to the vertical velocity of a projectile as it goes up?

• It increases.

• It decreases.

• It remains the same.

What happens to the vertical velocity of a projectile as it goes down?

• It increases.

• It decreases.

• It remains the same.

At what angle should the projectile be fired to have a maximum range?

• 0⁰

• 45⁰

• 90⁰

• 180⁰

What is the acceleration of a projectile when it reaches the highest point of its trajectory?

• 0

• 9.8 m/s²

• less than 9.8 m/s²

• greater than 9.8 m/s²

What is the vertical velocity of a projectile when it reaches the highest point of its trajectory?

• 0

• 4.5 m/s

• 9.8 m/s

• 12.7 m/s

Which of the following angles of release of a projectile, when it is fired at the same initial speed, gives the longest range?

• 10⁰

• 40⁰

• 70⁰

• 90⁰

Which of the following angles of release of a projectile, when it is fired at the same initial speed, has the highest point of trajectory?

• 10⁰

• 30⁰

• 50⁰

• 70⁰

A ball is launched at an angle of 15⁰ above the horizontal. At what angle should it be launched with the same speed in order to land at the same point?

• 5⁰

• 30⁰

• 55⁰

• 75⁰

Which of the following affects the motion of a projectile in an ideal setting?

• mass of the object

• shape of the object

• gravitational force acting on the object

• volume of the object