A block of wood of 200g is thrown vertically with a velocity of 20m/s, what is the potential energy?

Question:

A block of wood of 200g is thrown vertically with a velocity of 20m/s, what is the potential energy?

Conservation Of Energy

According to the conservation of energy, energy is indestructible and can be converted into one form into another, for example, a body having some kinetic energy when strike a spring then all the kinetic energy will be converted into the spring potential energy.

Answer and Explanation:

Given

Mass of the wood is {eq}m=0.2\ kg {/eq}

The velocity of the object is {eq}v=20\ m/s {/eq}

Now for the kinetic energy of the object:

{eq}K.E=\frac{1}{2}mv^2\\ K.E=\frac{1}{2}(0.2)\times (20)^2\\ K.E=40\ J {/eq}

As the height rises the kinetic energy will be converted into the potential energy and at the maximum height there will be maximum potential energy and kinetic energy will be zero.

Thus, the potential energy is 40 J


Learn more about this topic:

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Energy Conservation and Energy Efficiency: Examples and Differences

from Geography 101: Human & Cultural Geography

Chapter 13 / Lesson 9
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