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Is the box moving at a constant speed? Explain how you know. What does this tell you about the kinetic energy of the system

User DozenCrows
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1 Answer

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Answer:

The box is moved at constant speed, then the change in kinetic energy is zero.

Step-by-step explanation:

Let suppose that box moves at constant speed, meaning that its kinetic energy (
K), measured in joules, is expressed by the following equation:


K = (1)/(2)\cdot m\cdot v^(2) (1)

Where:


m - Mass, measured in kilograms.


v - Speed, measured in meters per second.

If the box moves at constant speed, then we notice that
v_(f)^(2)-v_(o)^(2) = 0, therefore,
\Delta K = 0. In a nutshell, if the box is moved at constant speed, then the change in kinetic energy is zero.

User Tapos Ghosh
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