Answer:
0.043665 J
Explanation:
The transormation of energy and differences is given by
[tex]M(gh-0.5v^{2})[/tex] where M is mass, g is acceleration due to gravity, v is velocity and h is height.
Substituting 0.0015 kg for M, 9.81 for g, 3m for h and 0.8 m/s for velocity.
[tex]0.0015(9.81*3-0.5*0.8^{2})=0.043665 J[/tex]
