Question

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

Short answer

The final kinetic energy for the process =$2J$.

Step-by-step solution

Kinetic energy : Given information in the Figure EX10.38

Initial kinetic energy,$K_i=1J$

Initial potential energy,$U_i=1J$

Environmental energy,$W_{ext}=4J$

Final potential energy,$U_f=3J$

Final thermal energy,$∆E_{th}=1J$

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

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

$K_i+U_i+W_{ext}=K_f+U_f+∆E_{th}$

Substituting the values from the energy bar chart given,

$$\begin{gathered} 1+1+4=K_f+3+1 \\ {K}_f=2J \end{gathered}$$

Hence, the process's final kinetic energy is$2J$.