Initials: Problem 3 - 25 points A fireworks rocket of mass M is launched with initial speed do at an angle 0 from the horizontal direction. It explodes into two unequal fragments at the highest point of its trajectory, the heavier one having three times the mass of the lighter one. The heavier fragment has speed 12 and v1? $1? direction $2 right after the explosion, as shown in the figure. You may assume that x the gravitational force has a negligible effect on the rocket only during the explosion. U2 Both the speed v1 and the angle or are unknown, but the information gathered about the motion of the bigger fragment implies that $1