Question

A 4,000 kg boat floats with one-third of its volume submerged. if two more people get into the boat, each of whom weighs 690 n, what additional volume of water is displaced?

Answer 1

 

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