When a vertically falling firecracker bursts, the vector sum of momentum fragments
A) in the horizontal direction cancels to zero.
B) in the vertical direction equals the momentum of the firecracker before bursting.
C) both of these
D) neither of these
Question 2
A firecracker bursts while freely falling. The combined momentum of its fragments
A) equals the momentum of the firecracker at the time of burst
B) cancels to the firecracker's momentum at the time of bursting.
C) cancels to zero.
D) none of the above