Question

Suggest ways in each case to make friction more useful by either

increasing or decreasing it​

Answer 1

Answer:

1) The friction has to be increased.

The friction can be increased by replacing the plastic soles with rubber soles.

Increasing the friction helps make it easier to walk without slipping.

2) The friction has to be decreased.

The friction can be decreased by using softer bristles which glide over easier.

Decreasing the friction causes less damage to the enamel of the teeth.

3) The friction has to be increased.

The friction can be increased by removing the grease.

Increasing the friction makes it easier to climb the pole.