Friction forces and terminal speeds Flashcards
When does friction acts
When object is moving or trying to move friction
The direction that poses
How big is the friction force
Friction force will match the size of the force trying to move it, up to a point, after this the friction be less tham the other force on the object, and the object Will move
What does friction do
Section make the moving objects slow down and stop
What is needed to overcome friction
Things always need a driving force to overcome the friction
How do you reduce drag
The larger the area of an object the greater the drag. So, to reduce the drag the area and she should be streamlined and reduced, like wedge shaped sports cars. Roof boxes on cars spoil the shape and this slogan down
When does resistance increase
As the speed increases the resistance increases as well
How do the resistance forces become equal
Resistance gradually reduces the Federation until the resistance forces is equal to the Excelerator forces to that account et cetera and anymore the forces are balanced
What is terminal speed
It is the fastest of the object can go
What determines the terminal speed
The greater the drag the lower the terminal speed of the object and the drag depends on its shape and area
