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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 are
- its helps us to walk
- to write
- driving car, etc,
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∙ 13y ago
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Why is friction a disadvantage?
Loss of energy. Any way friction is a necessary evil
Why is friction called necessary evil?
Friction is called a necessary evil because we cannot completly avoid it an actually it is used in many cases.
Is friction necessary for motion?
No. Friction is just necessary for controlling motion.
Advantages of friction in your daily life?
friction has many advantages walking,moving of a vehicle etc...............
More advantages of friction?
friction helps us to move
Why is friction a disadvantage?
Loss of energy. Any way friction is a necessary evil
Why is friction called a evil?
friction is called a necessary evil because we cannot completly avoid it an actually it is used in many cases.
Why is friction called necessary evil?
Friction is called a necessary evil because we cannot completly avoid it an actually it is used in many cases.
Why is friction called a necessary evil?
Friction is necessary : If there is no friction between any two surfaces in contact, then the present day civilization will be no more- as we cannot even walk properly on the earth. There will be no fabrics and garments, no construction of buildings and no furniture, even no cooking and no vehicles. So friction is necessary. But too much friction causes a heavy loss of energy, wear and tear of machinery. Thus, the efficiency of machines will decrease tremendously. So, it is rightly said that friction is a necessary evil.
Prove that friction is a necessary evil?
Yes necessary evil. If friction is totally absent then no wheel could roll on the road. No chance of walking on the floor. We cannot hold even the pen. Same time too much of friction would bring a terrible loss of energy.
Why friction is a necessary evil?
because we cant walk , hold articles , we cant write and the construction of house is impossible. but there are some disadvantages in friction.
What is the advantages of friction?
what is the advantages of friction
Why friction should be reduced?
friction is a necessary evil for the man-kind although it has many advantages it also carries any dis-advantages with it which are discussed below :-. 1. it reduces the efficiency of any machine, as some of the energy is lost due to friction as heat energy.So the energy reaching the output would be {input energy - frictional energy} 2. it causes wear and tear of machines. 3. produces unnecessary heat.
Is friction necessary for motion?
No. Friction is just necessary for controlling motion.
Why tv is a necessary evil?
television "a necessary evil
Advantages of friction in your daily life?
friction has many advantages walking,moving of a vehicle etc...............
Photos of advantages and disadvantages of friction?
Advantage of friction photo
