Author Question: If an apple falls a distance of 2 meters in its first second of fall, then 2 meters in its next ... (Read 117 times)

ssal · **on:** Jul 29, 2018

If an apple falls a distance of 2 meters in its first second of fall, then 2 meters in its next second of fall, and again 2 meters during its third second of fall, the acceleration of the apple is

1) 0 m/s2.
2) 2 m/s2.
3) 4 m/s2.
4) 10 m/s2.
5) actually, more than 10 m/s2.

This is because
6) no change in velocity occurs during fall.
7) the apple increases in distance by 2 meters for each successive second.
8) the average velocity is 1 m/s for each successive second.
9) its weight is counterbalanced by its inertia.

Question 2

An object drops in free fall. At one instant it is moving at a speed of 50 meters per second. Exactly one second later its speed is about

1) 10 m/s.
2) 50 m/s.
3) 60 m/s.
4) 100 m/s.

This is because
5) no net force acts on the object while in its state of free fall.
6) it gains a speed of about 10 m/s for each second of fall.
7) its velocity nearly doubles each second.