An object of mass 12 kg is at a certain height above the ground. If the potential energy of the object is 480, find the height at which the object is with respect to the ground. Give = 10 m/s)
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Answer:
Height reached by the object is 4 m.
Explanation:
Given,
Mass of object = m = 12 kg
Acceleration due to gravity = g = 10 m/s^2
Potential Energy of object = 480 J
To find: Height reached by object.
Solution:
Concept: The energy possessed by body by virtue of its position and configuration is known as Potential Energy.
So, Potential Energy = mass*acceleration*height
or, P.E = mgh
here, m = 12 kg , g = 10m/s^2 , P.E = 480 J
Substituting the values,
480 = 12 * 10 * h
or, h= 480 / 120
or, h = 4 m
Therefore, Height reached by the object is 4 m.
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