An object initially at rest explodes and splits into 3 fragments. the first fragment flies off to the west, and the second fragment flies off to the south. the third fragment will fly off toward a general direction of? why? if the object has a mass of 3.3kg, the first fragment has a mass of 0.43kg and a speed of 2.6m/s, and the second fragment has a mass of 1.3kg nad a speed of 1.4m/s, what is the speed of the third fragment? what is the direction of the third fragment?