Question

1. ccc stability and change snow has been lying on a mountainside. suddenly, it starts to move down the mountain. which types of friction are observed in this avalanche? where does each type occur?

Explanation:

Static friction acts on stationary objects. Here, the snow is initially at rest on the mountainside, so static friction is present. Sliding friction acts on objects in relative motion. When the snow begins to slide down the mountain, sliding friction comes into play.

Answer:

Static friction and sliding friction. Static friction occurs when the snow is lying still on the mountainside. Sliding friction occurs when the snow starts to move down the mountain.