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Y_Kistochka [10]
3 years ago
8

3. The sum of gravitational potential energy and kinetic energy is called mechanical

Chemistry
1 answer:
SCORPION-xisa [38]3 years ago
4 0

Answer:

Explanation:

Mechanical energy = Kinetic energy + Potential energy

We shall calculate mechanical energy at different points of time .

Time        Kinetic energy         Potential energy      mechanical energy

   0                     0                                 4                                  4

    2                     2                                  2                                 4

     4                    4                                  0                                  4

      6                   2                                  2                                  4

     8                    0                                   4                                  4

     10                    2                                   2                                 4

and so on ........

Hence we see that total mechanical energy is constant at the value of 4

at all time .

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