Frictional force

The force acting along two surfaces in contact which opposes the motion of one body over the other is known as FRICTIONAL FORCE

The force of friction exerted by fluids is known as fluid friction

FLUID FRICTION

TYPES OF FRICTIONFrictional force can be divided into three types . They are:Static friction Sliding friction Rolling friction

Static Friction

Sliding Friction

Rolling Friction

Spring BalanceA device used to measure the weight of an objectCan also be used for the measurement of forces

Effects of friction•Friction opposes motion

•FRICTION PRODUCES HEAT

Friction causes wear and tear

Advantages of friction

Disadvantages o f friction