Two eual forces act at a point. The squard of their resultant is ` 3 ` times their product, Find the angle between them.

Two eual forces act at a point. The squard of their resultant is ` 3 `

1.	Two eual forces act at a point. The squard of their resultant is ` 3 ` times their product, Find the angle between them.
Answer» Here, ` A = B=x` and ` R^2 = 3 AB= 3 x x = 3 x^2` ` cos theta (R^2 - A^2 - B^2 ) /( 2 AB) = ( 3 x^2 - x^2 - x^2)/( 2 xx x xx x)` `= 1/2 = cos 60^@` ` theta = 60^@`.

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Two eual forces act at a point. The squard of their resultant is ` 3 ` times their product, Find the angle between them.

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