Question

HELPPP.

Answer 1

This seems like a tough question, but it's not if you think carefully about the situation!

We need to set up some equations, but in order to do that we need to find things between A and B that equal each other, and this is probably the hardest part. Once you identify the things that are the same, the question becomes super easy.

So think of all the variables first. When A and B hit each other, what about them is the same? Consider horizontal/vertical speeds, accelerations, horizontal/vertical distances travelled, time, etc.

Answer 2

tried writing the equation of projectile?