Question

a 3-kg plastic tank that has a volume of 0.2 m3 is filled with liquid water. assuming the density of water is 1000 kg3, determine the weight of the combines system

Answer 1

Answer:

203 kg

Explanation:

Volume of tank = 0.2 $m^3$

Density of water in tank = 1000 kg/ $m^3$

Now, mass = volume × density

So, mass of water in tank = 0.2 × 1000 kg = 200 kg

Therefore, total weight of system = 200 kg + 3 kg = 203 kg

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Answer 2

Answer:

1991.43N

Explanation

m =200kg

v =0.2m3

p(ro) of water= 1000kg

required

combined weight =?

first finding the mass of water from density and volume

using m = v p(ro)

m =1000×0.2

= 200 kg

Now

combined mass = mass of tank + mass of water in

tank

= 3+200

= 203kg

Now weight

w =mg

w =203 × 9.81

= 1991.43N