A dockworker applies a constant horizontal force of 80.0\({\rm N}\) to a block of ice on a smooth horizontal floor. The frictional force is...

A dockworker applies a constant horizontal force of 80.0({rm N}) to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 12.0({rm m}) in a time of 4.70({rm s}