Question

5. A common way to reduce friction is by applying a bellulon
6.and
are thrown on slippery ground during rainy season to reduce
friction
7. The force of friction that exists between two surfaces when a body rolls over the other body is called rolling
friction
8. The force of friction is
_ if a rough surface is involved.
9. An air cushion between the two moving parts is used to
friction.
10. The rolling friction is
than the sliding friction.​

Answer 1

Answer:

using lubricants also will reduce friction and ballbearing in machines will reduce friction

Answer 2

Answer:

using lubricants also will reduce friction and ballbearing in machines will reduce friction........................................