Question

state an activity to compare sliding, static and rolling friction.

Answer 1

Answer:

static friction>sliding or dynamic friction> rolling friction . activity: Aim: to show that rolling friction is smaller than the sliding friction.Marterials required:: A thick book, cylindrical pencil(3 or 4). Method: follow the steps given below: place the book on the table and push it to slide. feel how much force is required to push it. Place free all for cylindrical lenses on the table parallel to each other. these pencils are acting as rollers. now place the book over this pencil . Push the book by ticking it.the book moves easily . Result: the book movies event based on electrical pencils.(Conclusion: rolling friction is smaller than sliding friction.)