Two plates each of the mass m are connected by a massless spring as shown A weight W is put on the upper plate which compresses the spring further. When W is removed, the entire assembly jumps up. The minimum weight W needed for the assembly to jump up when the weight is removed is just more than - A. mgB. 2mgC. 3mgD. 4mg

Two plates each of the mass m are connected by a massless spring as sh

1.	Two plates each of the mass m are connected by a massless spring as shown A weight W is put on the upper plate which compresses the spring further. When W is removed, the entire assembly jumps up. The minimum weight W needed for the assembly to jump up when the weight is removed is just more than - A. mgB. 2mgC. 3mgD. 4mg
Answer» Correct Answer - B

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