Time period of a block suspended from the upp | vedclass

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Question

(a) The forces that act on the block are $qE$ and $mg$. Since $qE$ and $mg$ are constant forces, the only variable elastic force changes by $kx$. Wher

Vedclass · Accepted Answer

$T$

Vedclass · Answer

(a) The forces that act on the block are $qE$ and $mg$. Since $qE$ and $mg$ are constant forces, the only variable elastic force changes by $kx$. Where $x$ is the elongation in the spring $ \Rightarrow $ unbalanced (restoring) force $ = F = - kx$

$ \Rightarrow $ $ - m{\omega ^2}X = - KX$$ \Rightarrow $ $\omega = \sqrt {\frac{k}{M}} = T$.

Time period of a block suspended from the upper plate of a parallel plate capacitor by a spring of stiffness $k$ is $T$. When block is uncharged. If a charge $q$ is given to the block them, the new time period of oscillation will be

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