A compound pendulum ocsillates through angles θ about its equilibrium position such that 8aθ^2 = 9g cosθ, a>0. its period is A. 2π(√((8a)/(9g))) B. ((3π)/8)(√(a/g)) C. 2π(√((9g)/(8a))) D. ((8π)/3)(√(a/g))


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Question Number 76817 by Rio Michael last updated on 30/Dec/19

$A compound pendulum ocsillates$ $through angles θ about its equilibrium$ $position such that$ $8 a θ^{2} = 9 g c o s θ, a > 0 . its period is$ $A . 2 π \sqrt{\frac{8 a}{9 g}}$ $B . \frac{3 π}{8} \sqrt{\frac{a}{g}}$ $C . 2 π \sqrt{\frac{9 g}{8 a}}$ $D . \frac{8 π}{3} \sqrt{\frac{a}{g}}$
Commented bymr W last updated on 31/Dec/19

$8 a θ^{2} = 9 g c o s θ m a k e s n o s e n s e .$
Commented byRio Michael last updated on 31/Dec/19

$r e a l l y i w a s d a m n c o n f u s e w h e n i s a w t h a t$
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