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

Physics!Calculate the instantaneous speed and distance fallen for an object that falls freely from rest for 8 seconds?
H=+1/2gt^2=1/2(9.8)(64)=313.6 meters


V=gt=9.8(8)=78.4m/sec.


God bless you.Calculate the instantaneous speed and distance fallen for an object that falls freely from rest for 8 seconds?
s = ut + (a * t^2)/2


u = 0


t = 8


t^2 = 64


a = 9.81


therefore s = 313.92 meters


v = u + at


therefore v = 78.48 meters per second


assuming it doesn't reach terminal velocity
u = 0


t = 8s


Speed after 8s


v = u + gt


v = 0 + 9.8x8 = 78.4m/s


distance fallen in 8s:


v^2 = u^2 + 2gs


s = v^2/2g = 313.6 m