Question

Based on Newton’s First Law, what would you expect to happen to a block that is pushed across ice and begins moving (You may assume there is no friction for this scenario? What would be necessary to cause the block to stop moving?

Answer 1

An unbalanced force.
Newton's first law states that an object in motion will stay in motion until a unbalanced force acts upon it.

Answer 2

I think an unbalanced force too.