Question

an eagle has a mass of 8 kg and is flying 85 m above he ground with a speed of 20 m/s. what is the total mechanical energy of the eagle

Answer 1

85+5=90 :DD
90-20=70 :DDD

Good lessons.

Answer 2

8264 Joules

Step-by-step explanation:

Mechanical Energy (ME) = Kinetic Energy (KE) + Gravitational Potential Energy (GPE)

Kinetic Energy = (0.5*mass*velocity^2)

Gravitational Potential Energy = (mass*height*9.8)

Note: The 9.8 in the GPE formula is Earth's gravity, it will be different on different planets.

ME = (0.5*8*20^2) + (8*85*9.8) = 8264

Substitute values into the variables, then put into calculator and solve.