Answer:
Gravitational potential energy, PE = 2.8 J
Explanation:
It is given that,
Mass of the bluebird, m = 34 g = 0.034 kg
It flies from the ground to the top of an 8.5-m tree, h = 8.5 m
We need to find the change in the bluebird's gravitational potential energy as it flies to the top of the tree. It can be calculated as :
[tex]PE=m\times g\times h[/tex]
[tex]PE=0.034\ kg\times 9.8\ m/s^2\times 8.5\ m[/tex]
PE = 2.83 J
or
PE = 2.8 J
So, the gravitational potential energy as it flies to the top of the tree is 2.8 J. Hence, this is the required solution.
