A farmer is using a rope and pulley to lift a bucket of water from the bottom of a well. The farmer uses a force F1 = 54.5 N to pull the bucket of water upwards at a constant speed. The bucket, when empty, has a mass of mb = 1.1 kg.

Respuesta :

Answer:

(a) Mass of the water in the bucket is [tex]4.46\ kg[/tex].

(b) The volume of water will be [tex]4460\ cm^3[/tex]

Explanation:

The question is incomplete the complete question is given below.

A farmer is using a rope and pulley to lift a bucket of water from the bottom of a well. The farmer uses a force [tex]F_1 = 54.5\ N[/tex] to pull the bucket of water upwards at a constant speed. The bucket, when empty, has a mass of [tex](m_b)[/tex] = 1.1 kg.

(a) Calculate the mass of the water in the bucket, [tex](m_w)[/tex] in kg

(b) Calculate the volume of the water in the bucket, [tex]V_w[/tex] in [tex]cm^3[/tex]. Use density of the water 1.00 g/

Given the farmer uses a force [tex]F_1 = 54.5\ N[/tex] to pull out the bucket.

Also, the mass of the bucket [tex](m_b)[/tex] is [tex]1.1\ kg[/tex]

The force due to mass of bucket [tex](m_b)[/tex] and mass of water [tex](m_w)[/tex] will balance the force used by farmer.

So,

[tex]F_1=(m_b+m_w)g[/tex]

[tex]54.5=(1.1+m_w)\times 9.81\\\frac{54.5}{9.81}=(1.1+m_w)\\5.56=(1.1+m_w)\\m_w=5.56-1.1\\m_w=4.46\ kg[/tex]

So, mass of the water in the bucket is 4.46 kg.

Now, let us work on next part.

Given density of the water [tex]\rho_w=1\ g/cm^3[/tex]

[tex]\rho_w=\frac{m_w}{V_w}\\V_w=\frac{m_w}{\rho_w}[/tex]

[tex]m_w=4.46\ kg=4.46\times1000\ g=4460\ g[/tex]

[tex]V_w=\frac{4460}{1}=4460\ cm^3[/tex]

So, the volume of water will be [tex]4460\ cm^3[/tex]

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