Class Management I Help w r (Sec 11.1-9, 12.1-3 Begin Date: 54/20115 1200:00 AM-

Question

Class Management I Help w r (Sec 11.1-9, 12.1-3 Begin Date: 54/20115 1200:00 AM-Due Date: 5/162017 15900 PM End Date: 5/222017 159.00 PM (8%)Problem 5: A barge floating in fresh water (o 1000 kg/m is shaped like a empty rectangular prism with base area A 350 m2 and height H 20 m When the bottom of the barge is located H 5 m below the surface of the water. When fully loaded with coal the bottom of the barge is located H 18 m below the surface. Randomized Variables A 350 m Ho 0,45 m. HI m 1.8 m Otheexpertta.com 14% Part (a) Select the correct free-body diagram for the barge when it is empty. lil A 14% Part b) write an equation for the buoyant force on the empty barge in terms of the known data. 14% Part (e) Determine the mass of the barge in kilograms. 4 14% Part (d) which freebody diagram represents the barge when it is loaded with coal? Grade Summary Deductions 0% N.coal F A Potential 100% Sul Attempts remaining: 5 per attempt) G,barge FN FG N,coal G,barge N, coal

Explanation / Answer

b) Fb = rho*V*g = rho*A*Ho*g

c) Fb = weight of empty barge = 1000*350*0.45*9.8 = 1543500 N

m = W/g = 157500 kg

d) 4th one

e) Using same

Fb = weight = 1000*350*1.8*9.8 = 6174000N

m = 630000 kg

Hence mass of coal = 630000-157500 = 472500 kg

f) Total mass = 157500 + 350000 = 365750

weight = mg = 3584350 N

Now weight = Fb

3584350 = 1000*350*h*9.8

h = 1.045m

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