Question

Give two examples fo show that friction is friend​

Answer 1

Answer:

Examples to show that friction is a friend and a foe: Friction is friend: (i) Friction allows us to grip and catch different objects. (ii) It helps us to walk comfortably on the surface. (iii) It helps to minimize the speed or to stop the moving objects. (iv) It helps us to write on paper or blackboard.

Explanation:

Hope this helps

Answer 2

Answer:

Examples to show friction as a friend -

i) Friction is used to walk on road.

ii) Friction is used for vehicles to run on road.

More to know -

• Friction - The force which opposes the motion of an object is called friction

it is a contact force.

There are 3 types of friction

i) Static

ii) Sliding

iii) Rolling

More to know about forces -

• The push or a pull in an object which results in the change in its position

• Effects of force -

i) It changes the shape of an object

ii) It change speed of an object

iii) It change size of an object

iv) it change direction of an object etc

• Type of forces -

• There are two types of forces

i) Contact - Forces that exerts only when they come in contact with other object

for ex- Friction, Muscular force

ii) Non - Contact - Forces that exerts when they are not in contact with other.

for ex- Gravitational , Electrolytic

• Gravitational force is weakest of all forces

• F = Ma