When two right angled vectors of magni-tude 7 units and 24 units combine, what is the magnitude of their resultant ?

When two right angled vectors of magnitude 7 units and 24 units combine, what is the magnitude of their resultant ?

What is the magnitude of a unit vector ?

Two forces of magnitudes 3 units and 5 units act at 60^(@) with each other. What is the magnitude of their resultant ?