Question

10. Friction is
(a) always an advantage
(b) always a disadvantage
(c) sometimes a disadvantage and sometimes an advantage
(d) neither an advantage nor a disadvantage
​

Answer 1

Explanation:

(c) sometimes a disadvantage and sometimes an advantage

Answer 2

Answer:

Sometimes a disadvantage and sometimes an advantage

Explanation:

There are many advantages of friction like

• It helps us to walk
• It helps to write
• stop the moving objects and many more are there...

but,

There are also some disadvantages of friction like

• Friction produces unnecessary heat leading to the wastage of energy.
• Forest fires are caused due to the friction between tree branches.
• Friction produces heat which damages the moving parts of a machine and many more are there...

Hope this helps you a lot

Thank you