A false balance has equal arms. An object weigh X when placed in one pan and Y when placed in other

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4-1.Newton's Laws of Motion

easy

A false balance has equal arms. An object weigh $X$ when placed in one pan and $Y$ when placed in other pan, then the weight $W$ of the object is equal to

A

$\sqrt {XY} $

B

$\frac{{X + Y}}{2}$

C

$\frac{{{X^2} + {Y^2}}}{2}$

D

$\frac{2}{{\sqrt {{X^2} + {Y^2}} }}$

Solution

(b)When false balance has equal arms then,$W = \frac{{X + Y}}{2}$

Standard 11

Physics

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