A bomb of mass `1 kg` is thrown vertically upwards with a speed of `100m//s`. After 5 seconds, it explodes into two fragments. One fragment of mass `400 gm` is found to go down with a speed of `25m//s`. What will happen to the second fragment just after the explosion ? `(g=10ms^(-1))`

Options

A. 100 m/s upwards
B. 600 m/s upwards
C. 100 m/s downward
D. 300 m/s upward

Answer

A