A small block of wood, of specific gravity 0.4 is submerged in water at a depth of 2.9 m. If the block is released from rest. Then choose the correct alternative(s).
A. Acceleration of block towards the surce is `14.7 m//s^(2)`
B. Velocity of block after 3 s is `29.4 m//s`
C. Time taken by the block to reach the surface is 0.63 s
D. Time taken by the block to reach the surface is 2.74 s