Question

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 mechanical energy is the same as kinetic energy

Answer 1

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

Step-by-step 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