contestada

papa bless

A skier is skiing down a slope on the mountain. Is the mechanical energy conserved? Why or why not?


The mechanical energy is conserved. There is as much KE at the end as there was PE at the beginning.

The mechanical energy isn't conserved. Some energy is lost to friction.

Mechanical energy is always conserved.

The mechanical energy isn't conserved. Some energy is lost to gravity.

Respuesta :

MissPhiladelphia
The best and most correct answer among the choices provided by the question is the third choice. Mechanical energy is always conserved. I hope my answer has come to your help. God bless and have a nice day ahead! Feel free to ask more. 
maccaudill02

Hello, I just took the test and your answer would be. The mechanical energy isn't conserved. Some energy is lost to friction.


Hope this helps - Kam :)


Otras preguntas