A projectile of 204 kg, fired having a speed of 130 m/s at a 65.0 degree angle, breaks into three pieces of equivalent mass at highest point of its arc (where its velocity is horizontal). The two of the fragments move with the similar speed right after the explosion as the whole projectile had just before the explosion; one of such moves vertically downward and the other horizontally.
Find out the magnitude of the velocity of third fragment instantly after the explosion.
Find out the direction of the velocity of the third fragment instantly after the explosion.
Find out the energy free in the explosion.