Resistive forces act against motion. They slow things down. There are three examples:
1. Friction – this is the force between surfaces that are touching
2. Air Resistance – this is the force on objects moving through the air
3. Water Resistance – this is the force on objects moving through water
For many objects that move it is important to make resistive forces as small as possible. This is often done by streamlining. Watch the video below about streamlining in cycling.
View the video below to find out more about friction.
Look at the PowerPoint for more detail about resistive forces.
Follow these hyperlinks to learn more:-