Question

what is friction explain with example

Answer 1

As an object falls, air resistance pushes up on the object. When you ride a bicycle, the contact between the wheel and the road is an example of rolling friction. When an object rolls over a surface, the force needed to overcome rolling friction is much less than that needed to overcome slidingfriction.

Answer 2

it is the type of force exerted when we rub two substances against each other then amonut of heat is also produced
.bst ex is matchbox

when u rub its stick with them the force of friction is there and due to this they produce heat. the substances must be rough


hope it helps u