When the firecracker explodes into two pieces of unequal mass, there is a change in motion of the left piece.
This implies that the left piece experiences an external force.
A firecracker is at rest on a frictionless horizontal table. The firecracker explodes into two pieces of unequal mass that move in opposite directions on the table.
1. Is the net force on the left piece always zero? Explain.
2. Is the net force on the system consisting of both pieces always zero? Explain.
3. Is the momentum of the left piece conserved? Explain.
4. Is the momentum of the system consisting of the both pieces conserved? Explain.
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