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# Is friction helpful or not why?

## Is friction helpful or not why?

Friction always slows a moving object down. 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.

### What are two examples of frictional force where it is harmful?

question_answer Answers(2) Friction produces heat causing wastage of energy in machines. Friction causes wear and tear of moving parts of macinery, soles of shoes, etc. Ans: Opposes motion of a body hence more energy is needed to overcome the friction.

In which manner is friction harmful?

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.

Friction can also be unhelpful. If you do not lubricate your bike regularly with oil, the friction in the chain and axles increases. Your bike will be noisy and difficult to pedal. When there is a lot of friction between moving parts, energy is transferred to the surroundings, causing heating.

## Which is an example of friction in our daily lives?

Wear and tear of the shoe: This is perfect friction as a necessary evil example. While friction enables you to walk the same friction can cause wear and tear to your shoes. The ladder against a wall: The ladder against a wall is a very common application of friction in our daily lives. Without friction, the ladder will slide on the floor.

### What happens if there is no friction in the world?

If there was no friction, you wouldn’t be able to move around, except by jet pack, like in outer space. When you walk, you exert a backwards frictional force on the ground, and it is the reactive frictional force from the ground, on the soles of your feet/shoes that pushes you forwards.

What happens if there is no friction between shoes and the ground?

Without friction between the shoes and the ground, you cannot walk properly. If there is no friction, all of us would be sliding around without any control over ourselves. While walking, you’re pushing your foot back as you try to step forward. Friction holds your shoe to the ground so you can walk around.

What happens when friction opposes a moving object?

Frictional forces oppose moving objects. When friction opposes the moving parts of an engine, the engine is forced to expend more energy to overcome the frictional force. Friction also transfers existing energy into heat.