Mike is swinging at the playground. At one point, he is moving at 3 m/s. His mass is 77 kg, and he is 0.6 m off the ground. What is his mechanical energy?

Question

anonymous · Answer

Mechanical energy = Potential energy( P.E)  + kinetic energy( K.E)

here the potential energy we talk about is gravitational potential energy.. |dw:1360737463008:dw|

so now all you need to know is how to calculate P.E and K.E... so can you do that?

anonymous · Answer

I have but i have a different answer and its not in one of my choices.

anonymous · Answer

@Mashy

anonymous · Answer

show me your work here please.. !!