Question

Two perpendicular forces of magnitudes 10N and 5N act at a point. Find their resultant

Answer 1

resultant = √(a² + b² +2ab Cos90)
               = √(100+25)
               = √(125)
               =  5√5 N

Answer 2

The resultant of two forces is 11.18 N.

Explanation:

We have, two perpendicular forces of magnitudes 10 N and 5 N act at a point. It is required to find the resultant of two forces. As two forces are perpendicular to each other. The resultant of two vectors is given by :

$F=\sqrt{10^2+5^2} \\\\F=11.18\ N$

So, the resultant of two forces is 11.18 N.

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