Why is friction called a necessary evil?
Answers
❤ HELLO MATE ❤
YOUR ANSWER ✔️✔️
★Friction is necessity★
⟹It is due to friction between the ground and the feet that we are able to walk.
⟹The brakes of a vehicle cannot work without friction.
⟹ Various parts of a machine are able to rotate because of friction between belt and pulley.
⟹The tyres of vehicles are made rough to increase friction.
⟹ Nails and screws join various wooden parts due to friction.
⟹ In the absence of friction it will not be possible to write on paper with a pen or pencil.
★Friction is an evil:
⟹ Wear and tear of machinery is due to friction.
⟹ A large amount of power is wasted in overcoming friction and the efficiency of the machines decrease considerably.
⟹ Excessive friction between rotating parts of a machine producers enough heat and causes damage to the machinery.
⟹As friction has both advantages and disadvantages, we can say that friction is a necessary evil.
THANK YOU.❣️✌
Answer:
❤ HELLO MATE ❤
YOUR ANSWER ✔️✔️
★Friction is necessity★
⟹It is due to friction between the ground and the feet that we are able to walk.
⟹The brakes of a vehicle cannot work without friction.
⟹ Various parts of a machine are able to rotate because of friction between belt and pulley.
⟹The tyres of vehicles are made rough to increase friction.
⟹ Nails and screws join various wooden parts due to friction.
⟹ In the absence of friction it will not be possible to write on paper with a pen or pencil.
★Friction is an evil:
⟹ Wear and tear of machinery is due to friction.
⟹ A large amount of power is wasted in overcoming friction and the efficiency of the machines decrease considerably.
⟹ Excessive friction between rotating parts of a machine producers enough heat and causes damage to the machinery.
⟹As friction has both advantages and disadvantages, we can say that friction is a necessary evil.
THANK YOU.❣️✌