A-compound-pendulum-ocsillates-through-angles-about-its-equilibrium-position-such-that-8a-2-9g-cos-a-gt-0-its-period-is-A-2pi-8a-9g-B-3pi-8-a-g-C-2pi-9g-8a-D-8pi-

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 by mr 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 by Rio 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