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Answer:
The potential energy is the energy accumulated in an object by its location.
PE = mgh where, m - mass, g - acceleration due to gravity and h - height
Step 1: Determining the potential energy of the object
Given that
Ball one mass, m_1=2\ kgm1=2 kg
Ball two mass, m_2 = 4 kg m2=4kg
Acceleration due to gravity = 9.8 m/s^2 =9.8m/s2
Height h = 30 m
Potential energy of the 4kg ball PE = mgh = m_2ghm2gh
PE = 4 kg * 9.8 m/s^2 * 30 PE=4kg∗9.8m/s2∗30
PE = 1176 PE=1176
Hence, potential energy of the 4kg ball PE = 1176 PE=1176 joules
and
Potential energy of the 2kg ball PE = mgh = m_1ghm1gh
PE=2kg*9.8m/s^2*30PE=2kg∗9.8m/s2∗30
PE = 588 PE=588
Thus, potential energy of the 2kg ball PE = 588 PE=588 joules.
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Explanation:
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