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Two Bodies a and B of Masses 10 Kg and 20 Kg Respectively Are at the Same Height Above the Ground. Which of the Two Has Greater Potential Energy ? - ICSE Class 8 - Physics

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Question

Two bodies A and B of masses 10 kg and 20 kg respectively are at the same height above the ground. Which of the two has greater potential energy ?

Solution

 

    Body A                                               Body B

P.`E_1`=`m_1`gh                                P.`E_2`=`m_2`gh

P.`E_1`=10×gh                                  P.`E_2`=20 ×gh

As g is constant and h is same in both the cases
Pe2 is greater than PE.
Hence, Potential energy of body B (more mass) is greater than the P.E. of body A.
Or
As height of body A and is same and ‘g’ is constant, the body with greater mass i.e. body B has greater potential energy.

  Is there an error in this question or solution?
Solution Two Bodies a and B of Masses 10 Kg and 20 Kg Respectively Are at the Same Height Above the Ground. Which of the Two Has Greater Potential Energy ? Concept: Gravitational Potential Energy.
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