Answer:
A. 200 s
Explanation:
The average speed of an object in motion is defined as
[tex]v=\frac{d}{t}[/tex]
where
d is the distance covered
t is the time taken
For the object in the problem, we know that
d = 100 m is the distance
v = 0.5 m/s is the average speed
Solving for t, we find the time taken to cover that distance:
[tex]t=\frac{d}{v}=\frac{100}{0.5}=200 s[/tex]
