The weightiness of the added water displaced is equivalent to the joined weight of the two extra people who come to be into the boat:
m water g = 2 x 690 N
= 1,380 N
The mass of the water displace is then
m water g = 1,380 N
= 1,380 N / 9.8 m/s^2
= 141 kg
Compute the calculation for density for the volume of water displace and practice this outcome for the mass of the water displace to get the answer:
p water = mass of water / volume of water
volume of water = mass of water / p water
= 141 kg / 1000 kg /m^3 eliminate kilogram
= 0.14 m^3 the additional volume of water that is displaced
