Answer:
1.Stronger bones 2.Joint flexibility
44000n/m
Explanation:
0.918 seconds
M = 2kg
V = 9.0 m/s
g = 9.8 m/s
F = Mg cosΘ
Θ = 0°
But F = Ma
a = v / t
F = m*v / t
Mv / t = mg cos0
V / t = g
t = v / g
t = 9.0 / 9.8
t = 0.918s