LANÇAMENTO OBLÍQUO E QUANTIDADE DE MOVIMENTO na ESPCEX 2022!

Statement: A grenade of mass M is launched from a flat, horizontal surface with an initial velocity V0 forming an angle θ with the positive direction of the horizontal X-axis. At the maximum height of its parabolic trajectory, it explodes into two fragments F1 and F2. Fragment F1, of mass M/4, immediately after the explosion, acquires a velocity V1, vertical and oriented downwards along the negative direction of the Y-axis. The time interval between the instant immediately after the grenade explodes and the instant when fragment F2 hits the ground is: In this video, I present the solution to a Physics question from the ESPCEX 2022 exam. This question involves oblique launch and conservation of momentum.