Applying Forces in sport

Question 1

State the 3 different types of forces (components)

Answer 1

-Vertical forces/components
-Horizontal Forces/components
-Paired forces- Newtons 3rd Law

Question 2

State the vertical forces (components)

Answer 2

Weight(w) is a gravitational force (downwards)
Ground Reaction Force (GRF)

Question 3

State the Horizontal Forces (Components)

Answer 3

-Friction (F)
-Air resistance (AR) also known as drag

Question 4

State the Paired forces

Answer 4

-Action
-Reaction

Question 5

What are balanced forces?

Answer 5

Balanced forces occur when two or more forces are in operation that are equal in size but opposite in direction.
Because all forces cancel each other out the Net Force is Zero

Question 6

What are unbalanced Forces?

Answer 6

Unbalanced forces occur when a force acting in one direction is larger than the one acting in the other direction. This will cause acceleration or deceleration (2nd law) overcoming inertia (1st law)

Question 7

what are resultant forces?

Answer 7

-These are the outcome of two forces meeting
zero=balanced
positive= acceleration
Negative= Deceleration

Question 8

What is friction?

Answer 8

Friction acts in opposition to motion, whatever was movement is going friction will be in the opposite direction.

Question 9

How do athletes and sporting bodies generate more friction?

Answer 9

-Spikes
-Studs
-Playing surfaces
-Tires

Question 10

What are the tips for free body diagrams?

Answer 10

1. The length of the arrow reflects the size of the force
2. Draw a direction of motion arrow
3. Add vertical force- Weight-GRF
4. Add horizontal forces- Air resistance and friction
5. add paired forces- action-reaction
6. Mention resultant forces-asscel/decel/constant
   7.The weight force always drawn from centre of mass
7. Reaction force(R) or (GRF) starts from where two bodies are in contact with another. Foot and ground or between sports equipment
8. Friction force (F) starts from where two bodies are in contact and opposite to the direction of potential slipping. Usually drawing in same direction as motion
9. Air resistance (AR) drawn from centre of mass and opposes the direction of the body