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The specific kinetic energy of a moving mass is given by ke = V2/2, where V is the velocity of the mass. Determine the specific kinetic energy of a mass whose velocity is 200 ft/s, in Btu/lbm.

Respuesta :

olasunkanmilesanmi

Answer:

0.799Btu/lbm

Explanation:

Data given

velocity, v= 200ft/s

Since the formula to define the the kinetic energy is

[tex]KE=v^{2}/2[/tex]

where v=velocity and the final answer expressed in Btu/lbm

we just substitute the value of the velocity into the equation and we arrive at

[tex]KE=(200ft/s)^{2}/2\\KE=20,000ft^{2}/s^{2}[/tex]

Now we convert to Btu/lbm

since

[tex]1 Btu/lbm=25,037ft^{2}/s^{2}\\[/tex]

then

[tex]20000/25037\\=0.799Btu/lbm[/tex]

Hence the kinetic energy in is 0.799Btu/lbm

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