Answer :
This is a problem that can be solved using free-fall motion analysis. Since the displacement (2.9m) is given, we can use the following equation to solve for the impact speed:
V^2 = 2gh
V = sqrt (2*9.8*2.9)
V = 7.54 m/s
V^2 = 2gh
V = sqrt (2*9.8*2.9)
V = 7.54 m/s