Question

list out the materials required and explain an activity to show that there is no effect of area of contact of the object on frictional force​

Answer 1

Answer:

1. A block of wood

2. Sand paper

3. Marble

Explanation:

Try sliding the block on sand paper in an inclined plane. Observe that it stops after sometime, on the sand paper itself.

Try the same activity with a marble. You will observe that it keeps moving lot more before coming to stop, as compared to the block.

Trick is,

SURFACE AREA IN CONTACT

Adhesion takes place between two objects in contact during motion, or rest.

it takes place due to frictional forces between two bodies

thus, there is no way that area in contact does not matter.

Answer 2

Explanation:

FRICTION IS THE FORCE RESISTING THE RELATIVE MOTION OF SOLID SURFACE FLUID LAYERS, AND MATERIAL ELEMENTS SLIDING AGAINST EACH OTHER.THERE ARE SEVERAL TYPES OF FRICTION

DRY FRICTION IS A FORCE THAT OPPOSES THE RELATIVE LATERAL MOTION OF TWO SOLID SURFACES IN CONTACT DRY FRICTION IS SUB-DIVIDED IN TO STATIC FRICTION " STICTION" BETWEEN NON-MOVING SURFACES WITH THE EXCEPTION OF ATOMIC OR MOLECULAR FRICTION,DRY FRICTION GENERALLY ARISES FROM THE INTERACTION OF SURFACE FEATURES, KNOWN AS ASPERITIES FLUID FRICTION DESCRIBES THE FRICTION BETWEEN LAYERS OF A VISCOUS FLUID THAT ARE MOVING RELATIVE TO EACH OTHER.....

HOPE IT'S HELP YOU ✌️

MARK AS BRAINLEST....☺️☺️