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  4. Block of 3 kg is initially in equilibrium and is hanging by two identical springs A and B as shown in figures. If spring A is cut from lower point at t=0 then, find acceleration of block in ms -2 at t=0.

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Q. Block of $3 \,kg$ is initially in equilibrium and is hanging by two identical springs $A$ and $B$ as shown in figures. If spring $A$ is cut from lower point at $t=0$ then, find acceleration of block in $ms ^{-2}$ at $t=0$.Physics Question Image

Laws of Motion

Solution:

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$k x=15$
after cut the spring $A$.
$a=\frac{3 g-k x}{3}=\frac{15}{3}=5\, m / s ^{2}$

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