Physics kinematics grade 12

A 50kg firework shell fired straight up to an altitude 1000 meters explodes at the exact moment that it had no momentum. The explosion resulted in only 3 fragments:
- first piece with a mass of 10kg flew with a horizontal velocity of 80m/s[N 45 E]
- second piece with a mass of 25kg flew with a horizontal velocity of 40m/s[E 57 S]
- third piece flew with unknown horizontal velocity.
First piece lands on the ground after 4 seconds
Second piece lands on the ground after 3 seconds.
Find when and where, after the initial explosion, did the third piece land?