A particle is released from height `H`. At cartain height from the ground its kinetic energy is twice its gravitational potential energy. Find the height and speed of particle at that height.
A. `H/3 sqrt(2gH)/3`
B. `H/3, 2sqrt(gH)/3`
C. `(2H)/3 sqrt(2gH)/3`
D. `H/3 sqrt(2gH)`