Question

what has the greatest friction among these kinds of surfaces​

Answer 1

Answer:

Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force. Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy.

Answer 2

Static friction is the greatest friction among these kinds of surfaces​.

• A resistive force that holds an object at rest is called static friction.
• It's the frictional force between a stationary object and a sliding surface, in other words.
• The friction is called kinetic friction when the thing is moving.
• Static friction occurs frequently in our lives; let's look at some real-life instances.