If the density of a drink is 1.15 x 10 3 kg/m3, what is the mass of one pint (570mL). What is its weight?

Question

Ignore mass/weight of glass

Answer 1

570 mL = 0.57L = 0.57*10^-3 m^3

so mass is 0.57*10^-3*1.1510^3 = 0.6555kg

and weight = mg = 0.6555*9.81=6.43Newtons

Answer 2

The drink is 1.15 times more dense than water.
570 ml of water = 570g
Drink Mass = 570 x 1.15 = 655.5g
Weight = 0.6555 x 9.81 = 6.43 N