Question

Q1. Explain why sliding friction is less than static friction.

Q2. Give examples to show that friction is both a friend and foe.​

Answer 1

Answer:-

Q1. Explain why sliding friction is less than static friction.

⇛ The sliding friction is less than static friction because the sliding object get less time to interlock into the contact point of the floor. So it is somewhat easier to move an object already motion than to get it started.

⠀

Q2. Give examples to show that friction is both a friend and foe.

⇛ i) Friction as a friend:-

• It allows up to grip and catch any object.
• It helps us to walk comfortably on the floor.

⠀

ii) Friction as a foe:-

• It causes wear and tears in objects.
• It reduces the speed of moving objects, so more force is required.

Answer 2

Answer :-

Q1. Explain why sliding friction is less than static friction.

Ans.2 → Explain why sliding friction is less than static friction because the sliding object get less time to interlock into the contact point of the floor. So it is somewhat easier to move an object already motion than to get started.

Q2. Give examples to show that fiction is both a friend and foe.

Ans.2 → i) ${\sf\underline{Friction~as~a~friend :-}}$

• It allows up to grip and catch any object.
• It helps us to walk comfortably on the floor.

${\sf{~~~~~~~~~~~~~~~~}}$ii) ${\sf\underline{Friction~as~a~foe :-}}$

• It causes wear and tears in objects.
• It reduces the speed of moving objects, So more force is required.