Two perpendicular forces of 10N and 5N act at a point .find their resultant.
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resultant = √(a2+b2+2ab cos90)
=√(100+25)
=√125
=5√5 N
=√(100+25)
=√125
=5√5 N
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their resultant is root 125. take 10N along y axis and 5N along z axis and draw resultant and you have it by graphically and mathematically root 125 is the answer or 5root5
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