Calculate the instantaneous speed and distance fallen for an object that falls freely from rest for 8 seconds.

Answer 1

If it free fall towards Earth, relatively close to its surface and there is no air resistance...

h=0.5 gt^2
h=0.5 x 9.81 x (8)^2
h=314m
and
if its initial velocity is zero
V=gt
V=9.81 x 8= 78.5m/s