An object weighs 22 kg in water and 30kg in air. what is the upthrust exerted by the liquid on the object.
[g = 10 ms2]
A
50 N
B
520 N
C
220 N
D
80 N
Verified Correct Answer: D.
Physical Principles & Numerical Solution
upthrust = weight in air - weight in liquid = 30 x 10 - 22 x 10 = 300 - 220 = 80 N
Source: Myschool Past Questions Archive (Record #14359)