Forces that act at a point are called concurrent forces. These forces have a common point of application and can be acting in different directions. - Collinear forces are forces that act along the same line of action, but not necessarily at the same point.
Coplanar forces are forces that lie in the same plane.
Concurrent forces are forces that act at the same point.
Unit forces are forces of magnitude one unit, but they are not defined by the point of action.
Thus, the correct answer is (c) Concurrent forces.
Which of the following is an octal number equal to decimal number \((896)_{10}\)?