Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion

Discussion Forum : Hydraulics and Fluid Mechanics - Section 4 (Q.No. 37)
37.
A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6 m, then the weight of the body is
3.53 kN
33.3 kN
35.3 kN
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
23 comments Page 2 of 3.

Debashis said:   7 years ago
Well said, thanks @Shubham.

Gokulkumar said:   7 years ago
Let's take the body as the submerged body then the formula is given by;

W*A*X.
9810*6*0.6.
35314N = 35.3 KN.

Jaydip Boda said:   1 decade ago
P = 1000*10*.6
= 6000 N/m^2

F = 6000*6
= 36000 N
= 36 KN

Harish Thakur said:   8 years ago
Thanks @Pradeep Gk.

Pradeep gk said:   8 years ago
Presur (p)=density*gravity*height.
Force/area=1000*9.81*0.6,
Force=1000*9.81*0.6*6,
F=35.316 KN.

Anand said:   8 years ago
You are right @Vishwas.

Muhammad Waqas said:   9 years ago
Buoyancy force = weight of the water displaced by the floating body as depth of immersion is 0.6.

So,
volume of water displace by floating body is = 3*2*0.6 = 3.6 m^3.
Now,
As mass of water displaced = Density of water * Volume of water,
= 1000 kg/m^3 * 3.6 m^3,
= 3600 kg,

Weight of water displaced = Mass of water * gravitation force,
= 3600 kg * 9.81 m/s^2.
= 35316 N = 35.3 KN.

Hindu raj said:   9 years ago
You are correct and you explained with the simple concept. Thanks @Vishwas.

Jaysukh said:   9 years ago
Your method is right @Rahul.

Vishwas Patel said:   10 years ago
At equilibrium, weight of body (W) = Force of buoyancy (Fb).

Fb = Specific gravity * Volume of immersion.

Fb = 9.81*1000*0.6*2*3.

Fb = 35.3 KN.

Hence weight of body = 35.3 KN.


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