Question

Example 3.4 Three force of 2P, 3P and 4P act along the three sides
an equilateral triangle of side 100 mm taken in order. Find the magnitu
and position of the resultant force.
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Answer 1

Answer:

Assuming the base of the triangle lieing along the positive x axis and the height of the triangle along the positive y axis, Let 2p be the force along the base, 3p making an angle of 120degree with the posititve x axis and 4p making 60 degree with the positive x axis. Then the cummulative forces along the positive x axis give by, 2p + 3p cos120 +4p cos60 = 2.5P Then the...