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A necessary evil means that friction has advantages as well as disadvantages so it called as necessary evil. Advantages of friction areits helps us to walkto writedriving car, etc,
three forces are there actually there are firstly four but abdus salam combine the two forces
The force of friction, which is the normal force (weight) multiplied by the coefficient of friction (how rough the carpet is).
which following is an exmpale of the force of friction
friction has many advantages walking,moving of a vehicle etc...............
Advantage of friction photo
frictionlaws of a dry
1) In machines the mechanical parts which rub with each other wear out. 2) Due to friction between the sole of the shoe and the floor the sole wears out. 3) Tyres of vehicles wear out because of friction. 4) Energy is wasted in overcoming the force of friction.
A necessary evil means that friction has advantages as well as disadvantages so it called as necessary evil. Advantages of friction areits helps us to walkto writedriving car, etc,
friction can cause the wearing away of surfaces
Friction is a force that must be overcome for no useful purpose. It takes energy to do this, and thus is wasteful.
These are a few of the great many advantages and disadvantages of having friction in sport: Friction allows a running person to stop, change direction, jump, catch a ball, and throw a ball. Friction between a ball and the air limits how far it can be thrown (although gravity has an even greater effect). Runners require energy to overcome the friction between their feet and the ground.
it is because of friction that we are able to stand and sit anywhere.
what is the advantages of friction
Advantages and Disadvantages of equity
three forces are there actually there are firstly four but abdus salam combine the two forces
advantages and disadvantages