Calculate required impulse to reach the spot.

Good day friends.Around three days can`t resolve a problem with impulse calculation(Porbably because my physics knowledge is very poor).

In Figure 1(Fig.1) and Figure 2(Fig.2) are conditions which requires to calculate Velocity of a body for succesefull landing.

What we know:
bodyVelocity,
bodyPosition,
targetPosition.

Question is : How to calculate velocity to reach the spot?


https://preview.ibb.co/fRWAck/problem.png

I have been searching before posting this topic but found nothing(maybe i didn’t realize that problem is similar?!).
Thanks for your time!