Physics
Grade-7
Easy

Question

What is the new gravitational potential energy when the height becomes
h over 4

  1. fraction numerator G P E over denominator 4 end fraction
  2.  4 space G P E
  3.  16 space G P E
  4.  fraction numerator G P E over denominator 16 end fraction

hintHint:

When the height of the body becomes h/4, the new gravitational potential energy is GPE/4.

The correct answer is: fraction numerator G P E over denominator 4 end fraction


    • The GPE increases when the height of an object increases.
    • When the height is h/4, the GPE 
    •   G P E equals m g h to the power of apostrophe
space space space space space space space space space space equals m g left parenthesis h over 4 right parenthesis
space space space space space space space space space space equals 1 fourth m g h
space space space space space space space space space space equals space fraction numerator G P E over denominator 4 end fraction

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