Author Question: When a vertically falling firecracker bursts, the vector sum of momentum fragments A) in the ... (Read 94 times)

Metfan725 · **on:** Jul 29, 2018

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