Question

Consider again three graphs for the motion of a skydiver who is affected by acceleration due to gravity and by air resistance:
1. an acceleration versus time graph for the falling skydiver
2. a velocity versus time graph for the falling skydiver
3, a displacement versus time graph for the falling skydiver

Which of the graphs have a positive slope?

Answer 1

I think the acceleration graph would be constant at -9.8 so it wouldn't be positive. Wouldn't all of them be negative? Because velocity is a vector quantity so it takes into account direction.
I don't know.. I've been thinking about this one for a while and I'm still stuck. Maybe it's just my mind turning to mush

Answer 2

well I got it wrong and im sad now

Answer 3

maybe too late but ...

due to air resistance , the diver reaches "terminal velocity"
... the resistive force of the air equals the gravitational force
... acceleration declines to zero , velocity becomes constant

the only thing constantly increasing is the diver's displacement
... displacement (from the jumping point) increases constantly