Question

expalin one example that frictional.force is proportional to normal force​

Answer 1

Answer:

As you can see in the figure the force with which be gold ingot presses against the ground in this situation is just its normal force is the force pushing the two surfaces together and the stronger the normal force the stronger the force due to friction..

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Answer 2

★ Concept :-

• The force that a solid surface exerts on any object in the normal direction i.e., perpendicular to the plane of the surface is called normal force.

• The force acting on the two surfaces in contact which opposes the motion of one body over the other is the force of friction$.$

★ Example that frictional force is directly proportional to normal force :-

Have you ever played a prank on someone, where they stand on a weighing scale and you are behind them, putting your foot on the scale to make them seem heavier?

You're adding an extra force, in addition to the person's weight to the scale, and the scale responds by pushing back with the same force. This force is normal force.

Here, Frictional force is taking place, Cause the scale is pushing back with same force(opposes the relative motion). And, It is a normal force cause it exerts the scale in normal direction.

★ Another example :-

Take two bricks of masses 2kg , 5kg and place them on a table.

Now, push both bricks with same force in one particular direction.

What did you observe?

You will observe that the 2kg object moves more distance when compared to 5kg object.

• weight is the attraction force of the Earth on an object.

• Normal force will be in opposite direction to the weight.

• This normal force depends upon the mass of the object.

• The brick with more mass experiences more normal force. Hence, frictional force will be more.

• The force of Friction increases between two surfaces if they are pressed hard.Hence, the movement of the object becomes restricted.

We can conclude that frictional force is directly proportional to the normal force.