Question

Forces of magnitude P, 2P, 3P, 4P, 5P act from the successive corners of a regular pentagon towards the centre of the Pentagon. Find the magnitude and direction of Resultant
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Answer 1

Explanation:

The resultant of 4 vectors in X, Y direction are:

resultant in X direction is 

3P−P=2P      (in -ve x direction)

In y direction is

4P−2P=2P     (in +ve y direction)

So, the net resultant force vector is 

R→=2P→+2P→

angle between both vectors is 90

So magnitude of resultant is 22P  in direction of 450 from positive y axis in IV quadrant.

Answer 2

Explanation:

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