describe an experiment to measure friction between two solid surfaces
Answers
Friction is generally a force created between "two surfaces" that rub against each other. The smoother the surface creates less friction as the rougher surface creates more frictional force between the objects.
This can be explained by a simple activity in day to day life such as a car moving on a road applying a brake. This creates a "frictional force" between the tyre of the car and the "surface of the road".
Answer:
Take a show box, with the shoes inside it. Tie the box with thread in between and put it on a side of a tabletop.
Connect the hook of the spring balance to the string of the box and pull it, slowly increasing the force until the box begins to slide. Make sure, the spring balance is parallel to the surface, on which the box of shoe is kept. The reading on the scale, when the box just begins to slide is a measure for the static friction, while the reading when the box continues to slide is the measure for the sliding friction.