Answer:
240 feet
Step-by-step explanation:
Given that,
The object falls 400 feet in 5 seconds.
We need to find how far it fall in 3 seconds.
5 seconds = 400 feet
1 second = 80 feet
So,
In 3 seconds,
d = (80×3) feet
= 240 feet
So, it will fall 240 feet in 3 seconds.