An apple starts falling from a tree. How is kinetic energy of it changing as it falls?Group of answer choicesit doesn't have any kinetic energyit is decreasingit stays the sameit is increasing
Question
An apple starts falling from a tree. How is kinetic energy of it changing as it falls?Group of answer choicesit doesn't have any kinetic energyit is decreasingit stays the sameit is increasing
Solution
The kinetic energy of the apple is increasing as it falls.
Here's why:
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Kinetic energy is the energy of an object due to its motion. It is given by the formula KE = 1/2 mv^2, where m is the mass of the object and v is its velocity.
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When the apple starts falling from the tree, its velocity is initially zero. As it falls under the influence of gravity, its velocity increases.
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Since the velocity of the apple is increasing, and velocity is a part of the kinetic energy formula, the kinetic energy of the apple also increases as it falls.
So, the kinetic energy of the apple is not staying the same, it is not decreasing, and it certainly does have kinetic energy as it falls. Therefore, the correct answer is that the kinetic energy of the apple is increasing as it falls.
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