Factors affecting projectile distance

Overview

Projectiles and the release factors of speed, angle and height, the optimum 45° angle, shot putters, javelin throwers and long jumpers, releasing too steeply or too flat, and the hammer thrower's turns.

What you need to know

Answer each one before you reveal it.

Questions from this subtopic

Each one with the model answer underneath.

1. 1

   What is a projectile?

   Model answer

   A projectile is a body launched into the air that is then acted on only by weight and air resistance.

2. 2

   Name the three release factors that affect the horizontal distance a projectile travels.

   Model answer

   The speed, angle and height of release all affect horizontal distance.

3. 3

   How does speed of release affect horizontal distance?

   Model answer

   A greater speed of release gives a greater horizontal distance. Speed of release is usually the most important of the three factors.

4. 4

   Why is speed of release often more important than angle of release?

   Model answer

   Horizontal distance rises with the square of release speed, so small gains in speed matter greatly. Angle only needs to be close to the optimum.

5. 5

   How can a javelin thrower increase the speed of release?

   Model answer

   The thrower uses a fast run-up and a long pulling action through the throw. Greater force applied for longer gives a greater release speed.

6. 6

   What is the optimum angle of release when release height and landing height are equal?

   Model answer

   The optimum angle of release is 45° when release height and landing height are equal.

Other ways to work this

The same content, four other ways.

What is inside Levo

Six ways to work the same material.