Q: 82 (NDA-II/2016)

Two balls, A and B, are thrown simul¬taneously, A vertically upward with a speed of 20 m/s from the ground and B vertically downward from a height of 40 m with the same speed and along the same line of motion. At what points do the two balls collide by taking acceleration due to gravity as 9-8 m/s*?
question_subject: 
Science
stats: 
0,8,24,8,8,16,0