Answer:
B I believe, because the axe is wedged into the log
The diver is plummiting to earth and if he does not put it soon he is going to die
Velocity = distance /time
acceleration = velocity / time
The weight of the plane is (mass) x (acceleration of gravity).
Neither of these changes when the plane rises from the ground.
Its weight on the ground is equal to (the same as) its weight in the air.