Passage III A block of mass m =1/2 kg is attached with two springs each of force contant k=10N/m as shown. The block is oscillating vertically up and down with amplitude A=25cm. When the block is at its mean position one of the spring breaks without changing momentum of block.
What is the new amplitude of osciallation of the block.
A. 10.6cm
B. 43.3 cm
C. 25 cm
D. 62.2 cm