Question

If all other factors remain same, arrange these media in increasing order of frictional force offered by them.

• A. Vacuum
• B. Air
• C. Water
• D. Honey

Answer 1

The frictional force on an object moving through a fluid depends on its speed with respect to the fluid. It also depends on the shape of the object and the nature of the fluid. Vacuum doesn't offer any frictional resistance to a body moving through it because of absence of particles. Air offers some resistance, followed by water and honey.