Question

objects in free fall near the surface of earth experience
a. constant speed
b. constant velocity
c. constant acceleration
d. constant distance

Answer 1

i think a

Answer 2

Only if you consider air resistance, and the object has reached terminal velocity does it have constant speed.
Relook at answer c.

Answer 3

As bobpursley pointed out implicitly this question is worded poorly. Ignoring air resistance it falls at about 9.81 m/s^2 acceleration downward, the acceleration of gravity. However after a high speed is reached air resistance does become important depending on the shape and it converges to constant velocity when the drag becomes equal to the weight, mg.
Sorry about being long winded but this is important.

Answer 4

Like rock versus parachute :)

Answer 5

The rock will accelerate down at about 9.81 m/s^2 for quite a distance but the guy with the parachute will hit terminal velocity quickly.

Answer 6

speed