Answer:

Explanation:
Given that
x= 150 ft

y= 14 ft
From the diagram

When ,x= 150 ft and y= 14 ft


z=150.74 ft

By differentiating with respect to time t


Here x is constant that is why


Now by putting the values in the above equation we get



Therefore the distance between balloon and observer increasing with 0.65 ft/s.
X Represents the distance the spring is stretched or compressed away from its equilibrium or rest position.
Just add all of them up and there is your answer I just added it but I want u to work it out to..
answer is 36
because the formulae of momentum is
mass×velocity