What Is Meant By Rolling Friction ?

1.	What Is Meant By Rolling Friction ?
Answer» The frictional force between two surfaces when one roles over the other is called rolling friction. A wheel or a BALL is slightly FLATTENED when its rests over a surface. A surface ALSO is slightly dented. Because of this deformation a resistance force ARISES when the wheel or ball rolls on a surface. This is called rolling friction. Rolling friction is much SMALLER than sliding friction. The frictional force between two surfaces when one roles over the other is called rolling friction. A wheel or a ball is slightly flattened when its rests over a surface. A surface also is slightly dented. Because of this deformation a resistance force arises when the wheel or ball rolls on a surface. This is called rolling friction. Rolling friction is much smaller than sliding friction.

Answer»

The frictional force between two surfaces when one roles over the other is called rolling friction. A wheel or a BALL is slightly FLATTENED when its rests over a surface. A surface ALSO is slightly dented. Because of this deformation a resistance force ARISES when the wheel or ball rolls on a surface. This is called rolling friction. Rolling friction is much SMALLER than sliding friction.

The frictional force between two surfaces when one roles over the other is called rolling friction. A wheel or a ball is slightly flattened when its rests over a surface. A surface also is slightly dented. Because of this deformation a resistance force arises when the wheel or ball rolls on a surface. This is called rolling friction. Rolling friction is much smaller than sliding friction.

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