Question

Four balls with different masses are dropped from the heights shown.
Air resistance may be ignored.
Which ball has the smallest average speed?
I A
B
с
D
1.0 kg
2.0 kg
3.0 kg
4.0 kg
4.0 m
3.0m
2.0 m
1.0 m
ground

Answer 1

Explanation:

1.0 kg,1.0 m

Answer 2

From the given question the correct answer is

4.0 kg ball has the smallest average speed of 1m .

Here comes the concept of free falling which is not measured on the account of air resistance, which affect a lightweight object more.