Question

Is friction harmful or useful?​

Answer 1

(☞ﾟ∀ﾟ)☞Answer:-

• Without friction, a car is useless. However, friction can also cause problems in a car. Friction between moving engine parts increases their temperature and causes the parts to wear down. Friction can be both harmful and helpful, so it may be necessary to decrease or increase friction.
• Friction can be a useful force because it prevents our shoes slipping on the pavement when we walk and stops car tyres skidding on the road. When you walk, friction is caused between the tread on shoes and the ground. This friction acts to grip the ground and prevent sliding. Sometimes we want to reduce friction.

hence,it is useful cause the accident of cars ocuurs due to the carelesness

hence,it is useful cause the accident of cars ocuurs due to the carelesnessof the driver.

please make me brainlest for my hard work

Answer 2

Explanation:

• Friction reduces the speed of the moving objects and it even stops the motion of the object.
• Friction between the objects produces heat. This results in the wastage of energy in the machines.
• There will be wear and tear of the machine parts due to friction.
• The frictional force opposes the motion of a body therefore, more energy is required to overcome friction.
• Friction between the branches and the leaves of the trees results in forest fires.
• Friction between the machine parts produces unwanted noise.