Question

in many machine s friction is reduced by using _____​

Answer 1

Answer:

Ball bearings

Explanation:

In many machines, friction is reduced by using ball bearings. О Fluid friction can be minimised by giving suitable shapes to bodies moving in fluids. In some situations, I oppose the motion in other situations, I facilitate the motion but, I always oppose the relative motion between two moving surfaces

Answer 2

Answer:

ball bearings

О In many machines, friction is reduced by using ball bearings. О Fluid friction can be minimised by giving suitable shapes to bodies moving in fluids. In some situations, I oppose the motion in other situations, I facilitate the motion but, I always oppose the relative motion between two moving surfaces.

Explanation:

Answer by @MissMiracle12 ❤