Question

A body of mass $6kg$ immerses in water partially. If the body displaces $100$ g of water, then the apparent weight of the body is

• A. $59$ N
• B. $40$ N
• C. $49$ N
• D. $60$ N

Answer 1

Answer: (A)

$59$ N

Given :

Mass of body , M = 6 kg .

Water displaced by body , m = 100 gm = 0.1 kg .

Therefore , apparent mass is , $M^{\prime }=M-m$

$M^{\prime }=6-0.1=5.9kg$

Now , we are required to find the apparent weight of the body .

We know , weight is given as :

W = mg , where $g=10m/s^2$

Putting apparent weight in above equation , we get :

$w^{\prime }=5.9\times 10=59N$

Therefore , apparent weight of the body is 59 N .