Question

An object is dropped from rest and falls freely 20 m to Earth. When is the speed of the object 9.8 m/s?

At the end of the first second of its fall
At the end of the first second of its fall

During the entire time of its fall
During the entire time of its fall

At no time is the speed 9.8 m/s
At no time is the speed 9.8 m/s

During the entire first second of its fall
During the entire first second of its fall

After it has fallen 9.8 meters

Answer 1

During the entire time of its fall because as soon as it falls that’s what the speed it will be until acted on by a outside force