Displacement after 8.9 seconds is 1462.68 m
Step-by-step explanation:
We have equation of motion s = ut + 0.5 at²
Initial velocity, u = 208 m/s
Acceleration, a = -9.81 m/s²
Time, t = 8.9 s
Substituting
s = ut + 0.5 at²
s = 208 x 8.9 + 0.5 x -9.81 x 8.9²
s = 1462.68 m
Displacement after 8.9 seconds is 1462.68 m