Question

Friction is neither useful nor harmful. True or Fa

Answer 1

False.

Friction is both useful and harmful. Hence, It is wrong to say it's neither useful nor harmful.

Friction is the cause of wearing, and can be said as a disadvantage. But, Friction also helps us to walk, balance things.

Thus, Friction can be called Necessary evil. Though there are disadvantages, they can be overcomed by using lubricants in machines.

Do you know?

• Do you know? Friction opposes the relative motion of a object over the other.
• Do you know? Friction opposes the relative motion of a object over the other.It always acts opposite to direction of applied force

Answer 2

The statement Friction is neither useful nor harmful is False statement

Friction force can be very harmful to us. As well as, Very useful to us.

The advantage of frictional force is:

• It helps us in walking; because of which, we are able to walk on the road/soil.
• The tyres of Bicycles and motorcycles are able to rotate because of frictional force.
• Brakes of cycles are applied because of Frictional force.

The disadvantage of frictional force is:

• Large amount of heat is wasted in Machines because of it.
• If we don't lubricate our cycles and motorcycles with oil at necessary time, then it can create very high frictional force.
• If a large amount of frictional force is produced between the 2 objects, and if we touch it, then it can be very harmful to us.

Hence, Friction is neither useful nor harmful is wrong statement to say.