Triple exploding shell. a firework is designed so that when it is fired directly upwards, it explodes and splits into three equal-massed parts at its peak. someone launches the firework directly upwards and measures the locations of two of the pieces of the firework. they find that one piece landed 2 meters to the left and another piece landed two meters in front of them. where did the third piece land?

The third part will land at the point at which the shell exploded.

Explanation:

Since the shell explodes due to an intnternal force the center of mass of the shell shall be at the same point as it was initially i.e point of origin.

Thus we have

It is given that the shells are of equal masses thus applying given values we have

Hence the third part will land at the point at which the shell exploded.

b. latent learning (the word "latent" itself means something that exists but isn't obvious, only under certain conditions! )

an obstruction