2a.2 - Resultant Forces Flashcards
What is a resultant force?
The overall force on a point or object
What does a resultant force result in?
A change in velocity
What will happen the resultant force is 0?
It will remain stationary
What will happen if there is no resultant force?
Objects will carry on moving at the same velocity
What will happen if there is a non-zero resultant force?
The object will accelerate in the direction of the force
What is the unit for acceleration?
m/s2 (metres per second squared)
What is force measured in?
Newtons
What happens when two objects interact?
The forces they exert on each other are equal and opposite
What force makes all things eventually sloe down and stop?
Friction
Does the amount of drag increase or decrease as the speed increases?
Increases
What is terminal velocity?
The maximum speed achieved before it will start to fall
What does terminal velocity depend on?
Shape and area
