A firecracker of mass 2m is thrown with an initial velocity that is up directions), sending it in projectile motion. At the top of its trajectory the firecracker explodes breaking it into two equal parts each of mass m. After the explosion, one part falls straight down along -j with no horizontal motion. What direction is the other half moving just after the explosion? (A) up and to the left (-i and +3) (B) straight up (+j only) (C) up and to the right (+i and +3) (D) it stops moving (u= 0) (E) down and to the right (+i and -j) (F) straight down (-j only) (G) down and to the left (-i and -j) Firecracker exploding into two equal-mass pieces at the maximum height of it's trajectory.

A firecracker of mass 2m is thrown with an initial velocity that is up directions), sending it in projectile motion. At the top of its trajectory the firecracker explodes breaking it into two equal parts each of mass m. After the explosion, one part falls straight down along -j with no horizontal motion. What direction is the other half moving just after the explosion? (A) up and to the left (-i and +3) (B) straight up (+j only) (C) up and to the right (+i and +3) (D) it stops moving (u= 0) (E) down and to the right (+i and -j) (F) straight down (-j only) (G) down and to the left (-i and -j) Firecracker exploding into two equal-mass pieces at the maximum height of it's trajectory.