Note: Some versions of this problem assume the explosion is instantaneous ( ), in which case and momentum is conserved exactly ( ). In that scenario, the velocity would be 4. Visualization of momentum change
After the explosion, each fragment becomes an independent projectile, subject only to gravity (ignoring air resistance for basic physics). Their paths are parabolas. However, there is a beautiful mathematical result: (a downward vertical line from rest) as if no explosion had occurred. A Pyrotechnician Releases A 3-kg Firecracker From Rest
After explosion: Suppose the firecracker breaks into two main fragments. Then: [ m_1 \vec{v}_1 + m_2 \vec{v}_2 = 3 \vec{v}_0 ] Note: Some versions of this problem assume the