2. A projectile is launched into the air. The projectile has a mass of 50 kg and is travelling with a speed of 100 m/s at the peak (as shown in the adjacent figure). a. What is the initial momentum of the projectile (magnitude and direction)? m = 50 kg b. The projectile explodes a moment later at the peak (due to internal forces. It breaks into three pieces as shown in the adjacent figure. Determine the momentum (magnitude and direction) of the third piece. 30 m/s 20 m/s v=100 m/s 20 kg 15 kg 15 kg c. A new projectile is launched with an identical mass and initial velocity to the one in part (a). Again, it explodes at the peak due to internal forces. This time, however, it forms just two fragments. One flies straight up, and one downward and to the right (see the adjacent figure). Determine the resultant speed and direction of the second fragment. 10 m/s 25 kg v=? 25 kg