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saul85 [17]
4 years ago
5

A bird has kinetic energy of 3 J and the potential energy of 25 J what is the mechanical energy of the bird 3 J Because mechanic

al energy is the same as kinetic energy
Physics
1 answer:
tiny-mole [99]4 years ago
3 0

Answer:

The total mechanical energy of the bird is, E = 28 J

Explanation:

The total mechanical energy of the system is the sum of the potential and kinetic energy of the system.

When a bird is flying at a certain height from the ground, it posses partial potential and kinetic energy.

The total energy,

                                           E = P.E + K.E

                                           P.E = mgh J

                                           K.E = ½ mv²

The total mechanical energy of the bird at any instant of time is equal to its potential and kinetic energy.

Hence, the mechanical energy of the bird is, E = 25 J

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