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Chapter 10: Q.38 (page 257)

What is the final kinetic energy of the system for the process shown in FIGUREEX10.38?

Short Answer

Expert verified

The final kinetic energy for the process =2J.

Step by step solution

01

Kinetic energy : Given information in the Figure EX10.38

Initial kinetic energy,Ki=1J

Initial potential energy,Ui=1J

Environmental energy,Wext=4J

Final potential energy,Uf=3J

Final thermal energy,∆Eth=1J

The work that an object can perform as a result of its mobility is measured by its kinetic energy.

02

Explanation :

The entire energy in any process is always conserved, according to the law of energy conservation. As a result, the process's final kinetic energy is computed as

Ki+Ui+Wext=Kf+Uf+∆Eth

Substituting the values from the energy bar chart given,

1+1+4=Kf+3+1Kf=2J

Hence, the process's final kinetic energy is2J.

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