Some ways it can be helpful are keeping warm- rubbing your hands together. some ways it can be harmful is when to cars rub aganst each other on the road , heat is added, cars are damaged and lives can be in danger.
brakes are helpful
carpet burns are haarmful
Friction can be harmful or helpful when driving, no matter what time of year. For instance it is helpful when breaking and it is harmful between bearing surfaces. The loss of friction between the tyres and the road during winter can be disastrous.
it can give us warmth
because it is natural
For example, it keeps you from slipping when you walk.
harmful friction is when friction can do harm or be a problem for example of this is if your skiing down a hill with grass you will have to much friction then you fall and get hurt :p
Friction can be harmful or helpful when driving, no matter what time of year. For instance it is helpful when breaking and it is harmful between bearing surfaces. The loss of friction between the tyres and the road during winter can be disastrous.
Helpful Friction.
it can give us warmth
because it is natural
For example, it keeps you from slipping when you walk.
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sandpaper used to smooth wood
Friction can be both harmful and helpful. Without friction the tires of the bike could not push against the ground to move forward, and the brakes would not stop the bike. However, friction can cause parts of the bike and the tires to wear down. Also, to overcome the friction between the tires and the road you need to pedal harder to go faster.friction is helpful to stop the bike when you put on the brakes but it may be harmful by slowing your speed down. and if you hit the brakes hard at a sudden moment, you could tumble or flip
it can be helpful or harmful
mould is a helpful one and bacteria is a harmful one
Deep tread added to snow tires.
Yes, friction CAN be harmful, depending on where it occurs. If you'd fall and scrub your knee, that's harmful friction. IF your shoes are chafing and yopu get a blister, that's harmful friction. In a machine, if a bearing becomes warm, that's harmful friction.