A cannon ball is fired with a velocity 200 m/sec at an angle of 60° with the horizontal. At the highest point of its flight it explodes into 3 equal fragments, one going vertically upwards with a velocity 100 m/sec, the second one falling vertically downwards with a velocity 100 m/sec. The third fragment will be moving with a velocity [NCERT 1983; AFMC 1997]

• A.          100 m/s in the horizontal direction
• B.          300 m/s in the horizontal direction
• C.          300 m/s in a direction making an angle of \[60{}^\circ \]with the horizontal
• D.          200 m/s in a direction making an angle of \[60{}^\circ \] with the horizontal