Question

2 33. Determine the magnitude of the resultant force and its 400 N 30P 45 800 N

Answer 1

A more simple diagram for the given problem can be drawn as

In this diagram i have designated two force vectors as A (having magnitude 800 N)and B (having magnitude 400 N).

Now, from the figure, we can write

  

or,  

or,  

And

or,

or.

So, the resultant force (F) will be

or,

or,

Now the magnitude of resultant force (F) can be calculated as

And the direction () of resultant force can be calculated as

Hence, the resultant force is making an angle of nearly 22⁰ with positive x - axis in clockwise direction.

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