Question

Three identical blocks are suspended on two identical springs one below the other as shown in figure. If thread is cut that supports block 1, then initially (choose one alternative only)

• A. The second block falls with zero acceleration
• B. The first block falls with maximum acceleration
• C. Both (1) and (2) are wrong
• D. Both (1) and (2) are correct

Answer 1

Answer: (D)

Both (1) and (2) are correct

Answer 2

In equilibrium,

When thread is cut, T = 0 so a₁ is maximum but
a₂ = a₃ = 0