4. A
balloon was originally floating at a certain stationary. The pilot then
release a weight from rest. As a result the balloon rose with a constant
acceleration of 1.5 m/s2. The weight hit the ground after 10s.
a. (13 points)
How high was
the balloon when the pilot threw the weight away?
Solution:
b. (7 points)
How high was
the balloon when the weight hit the ground?
