Friction is said to be maximum in smooth surfaces. Then why does the smooth tyre slip on the road while the tyre with projections doesn't ?
Approved Tutor Answer16 Years agoyes friction is maximum in smooth surfaces.
But the reason behind these frictional force is intraction between two atoms of different surfaces causes a attractive force between them. This force forms a bond between two surfaces(something like chemical bond of low magnitude). This bond is to be broken which needs energy so friction increases.
But in case of smooth tyres atoms of road and tyre dont intract effectively. smooth tyres dont have projections to resist relative motion between surfaces. so friction is low but tyres with projections can easily resist slipping.
Three identical balls are placed on a frictionless
horizontal surface touching each other. They stick to
each other because of adhesive. Another ball of same
radius and mass m is placed over the void created by
the three balls. Find the forces applied by the balls
kept on the floor to each other if the system remains
in equilibrium.
Last Activity: 10 Months ago
A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.
11
21
31
41
Last Activity: 10 Months ago
Last Activity: 3 Years ago
Last Activity: 3 Years ago
