In the figure shown, the block is moved side ways by a distance \( A \). The magnitude of net fo...

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In the figure shown, the block is moved side ways by a distance \( A \). The magnitude of net force on the block is
(a) \( \left(k_{1}-k_{2}\right) A \)
(b) \( \left(k_{2}-k_{1}\right) A \)
(c) \( \left(k_{1}+k_{2}\right) A \)
(d) \( \left(\frac{k_{1}+k_{2}}{2}\right) A \)
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