Question

Why is it harder to start to slide a heavy
box across the floor than to keep it​

Answer 1

Answer:

because of the friction

Explanation:

Answer 2

Answer:

When you set the box on the floor, and try to slide the box, well, the two mountain ranges, because they, they're, interdigitated like that, they press against each other with local support forces, and that makes it difficult to start the box sliding across the floor.

hope it helps