Non-elastic effects
Gravity
Power dissipation
Buoyancy
Answer is Right!
Answer is Wrong!
The correct answer is: A. Non-elastic effects.
Rolling friction is a force that opposes the rolling motion of an object. It is caused by the deformation of the surfaces in contact with each other. The deformation causes the surfaces to stick together, and this resistance to movement is what we call rolling friction.
The amount of rolling friction depends on the following factors:
- The materials of the surfaces in contact.
- The shape of the surfaces in contact.
- The load on the object.
- The speed of the object.
Rolling friction can be reduced by using lubricants, which reduce the deformation of the surfaces in contact. It can also be reduced by using smooth surfaces and by reducing the load on the object.
The other options are incorrect because:
- Gravity is not a force that opposes the rolling motion of an object. It is a force that attracts objects to the center of the Earth.
- Power dissipation is the process of converting energy from one form to another. It is not a force that opposes the rolling motion of an object.
- Buoyancy is an upward force that is exerted on objects that are submerged in a fluid. It is not a force that opposes the rolling motion of an object.