What is one situation that friction is useful?

Answer 1

Friction plays a vital role in our daily life. Without friction we are handicap.
1. It is becomes difficult to walk on a slippery road due to low friction. When we move on ice, it becomes difficult to walk due to low friction of ice.
2. We can not fix nail in the wood or wall if there is no friction. It is friction which holds the nail.
3. A horse can not pull a cart unless friction furnishes him a secure foothold.

Answer 2

Without friction the world simply would not work. For instance, if you tried to put your down on the ground it would simply slip. Another good aspect about friction is that without it your car wheels would simply spin and when you tried to brake you would simply keep rolling.

Answer 3

Friction can be useful: friction between our shoes and the floor stop us from slipping. friction between tires and the road stop cars from skidding. friction between the brakes and wheel help bikes and cars slow down.

Answer 4

Static friction causes objects not to move. When the object doesn't move the forces are balanced. When the object starts to move it changes to kinetic friction. It is helpful when leaning on a wall so you don't slide also when sitting in a chair.

Answer 5

stopping cars

Friction is useful to start a fire with sticks.

Answer 6

if you are standing with you're feet together on a steep hill. Static friction is keeping you feet from slipping.

Answer 7

To hold a car on a curved driveway

Answer 8

For stopping things that are in motion.