The mechanical energy of an object is equivalent to the sum of its potential and kinetic energy. If the helicopter is grounded, then its mechanical energy will be 20 J. If it is in the air, then its potential energy will be calculated using:P.E = mghAnd then added to the kinetic energy to obtain mechanical energy.
Answer:
January 11th
Explanation:
This upcoming year the playoffs for collage football will start January 11th 2022
An absolute monarchy has complete control over everything and everyone <span />