The greatest and the least resultant of the two forces acting at a point are 29N and 5N respectively. If each force is increased by 3N , find the resultant of the two forces acting at right angle to each other ?
So mates do we have to find the angle made by resultant with the force?
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Answer:If two forces are F1 and F2 then,
F1 + F2 = 29N
F1 - F2 = 5N
Add above two equations
2F1 = 34N
F1 = 17N
From first equation
F2 = 29 - 17 = 12N
When increased by 3N
F1 = 17N + 3N = 20N
F2 = 12N + 3N = 15N
Resultant = sqrt(20^2 + 15^2) = sqrt(400 + 225) = sqrt(625) = 25N
Explanation:
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