Change in CG = 0.3m (
current position 4.4m required 4.7m)
distance between holds = 5.8m
Formula:
Change in mass/total mass = change in CG/total distance moved transposed to:
Change in mass = total mass x change in CG/total distance moved substitute
known values:
= 145000x 0.3 /5.8 = 7500kg