Question

Walking on water spilled tile floor tends to slip, why

Answer 1

Thanks for the question...

We often slip when there is little traction or friction between the shoe and walking surface.
By friction we mean a force that happens when two rough surfaces rub together.

We tend to slip on water spilled tiles because surface of the water reduces the amount of rubbing against it by another object by making it slide. Wet surfaces have slightly scattered molecules, preventing too much friction on one spot to happen which results in slippage.

Hope it solves your query.

MVB

Answer 2

do you know about friction , whenever a body moves or tends to move or tend to slip over the surface of another body , then a force comes into play which acts parallel to the surface of contact and opposses the relative motion. the opposing force is called friction.

now, friction is directly proportional to normal reaction act between contacting surface of bodies. e.g., fr $\propto$N
or, fr = uN
here u is coefficient of friction. it depends upon roughness of surface . higher the roughness of surface , higher will be coefficient of friction and then higher will be friction force.
but if surface is smoother , then coefficient of Friction will be lower and then friction force will be lower.

in case of walking on water spilled tile floor , roughness decrease or smoothness increases due to this coefficient of friction decrease and hence, friction decreases that's why we tends to slip on water spilled tile floor.