Two forces each numerically equal to 10 dynes are acting as shown in the following figure, then there
10 dynes
10 dynes
(2) 20 dynes
10 dynes
3) 10,3 dynes
(4) 5 dynes
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Explanation:
R²=ROOT(A²+B²+2ABcosø)
R²=_/(10²+10²+2×10×10×cos60)
R²=_/(100+100+200×1/2)
R²=_/(100+100+100)=10root3 dynes
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