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Newton's laws of motion

Question

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. 

Moderate
Solution

2kx=3g

kx=15

after cut the spring A.

a=3gkx3=153=5m/s2



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