No the drill's friction against a tooth (enamel) is not harmful. If this procedure was harmful then there wouldn't be these people who wear white scrubs and make a ton of money to see teeth all day,,,, you know they call them (Dentist!!!!). Just kidding... I like to have fun. but no harm is done... They would not allow this in dentistry if it were harmful to you, (95% of procedures are having to use a drill one way or another... Aunt Laura
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
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
Friction is helpful between car tyres and roads for grip. It is also sometimes used for heating as friction generates heat.
Helpful Friction.
If you need help I recommend you type in the specific question you need help with
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.
Friction is helpful in situations like when you are standing on a hillside. Static friction between your shoes and the surface are stopping you from slipping. Friction is not helpful in situations like when you are pulling something heavy. Some of the energy you are putting into pulling is going into heat from kinetic friction and making your job more difficult.
it can be helpful or harmful
sometimes they are helpful and harmful.
Friction can be helpful and not helpful it is not helpful when you are running because it slows you down hope that'll help!!!! ;)
Sandpaper is both helpful and harmful.