Two forces 9N and 14N are acting at a point on a body at an angle of 60°. Find the magnitude and direction of their resultant force.
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Answers & Comments
Answer:
20N
Step-by-step explanation:
Formula used
A^2 = 9x9 =81
B^2 = 14x14 =196
X= 60°
cosX= cos60° = 1/2
put these values in the formula
=> √ {81+196+2(9)(14)(1/2)}
=> √ (277 + 126)
=> √ 403
=> 20.07 N
=> 20 N apx.