TOPIC A2

Newtons first law

An object remains at REST or CONSTANT VELOCITY when the forces acting on the object are balanced (intertia)

Balanced force

Net force = 0 (In equilibrium)

Newtons second law

F = ma

Newtons third law

For every force, there is an EQUAL AND OPPOSITE force

Friction

The resistive force felt by an object when moved along a surface that it is in contact with

Buyancy

The force experienced by a body either totally or partially immersed in a fluid (fluid is a liquid or gas). The size of this force is equal to the weight of the fluid displaced.

Terminal velocity

When F_d (Drag force) equals to the downward force of weight

Conservation of linear momentum

For any isolated system, there will be no change to the total momentum within the system

Impulse

This is the change of momentum

Angular displacement

Angle from the starting point moved by an object during circular motion

Angular velocity (w)

The rate of change of the angular displacement