Question

why metal chains are wrapped on Tyres when they are running on Icy roads

Answer 1

Because the smooth or icy surface reduces friction that is why if we apply breaks the truck does not stops..... For increase friction the iron chains are wrapped on the tyres of trucks in icy areas.... Which increases the grip and increase friction.... Which helps the car to stop after apply breaks in icy areas...

Answer 2

Metal chains are wrapped on tyres when they run icy roads. So , they to increase friction on the surface of Ice road