Concept explainers
According to the work-energy theorem, in the absence of friction, if you do
To-determine: The increase in the kinetic energy of the cart in the absence of friction.
Answer to Problem 10TE
The increase in the kinetic energy of the cart is
Explanation of Solution
The work-energy theorem states that the work done on an object is same as the change in the energy of the object. If the friction is absent then the work done against the friction becomes zero. The work done by an object in the absence of friction then becomes equal to the change in the value of kinetic energy of the object.
The work done on the cart is
Conclusion:
Therefore, the increase in the kinetic energy of the cart is
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