skier is skiing down a slope on the mountain.
Is the mechanical energy conserved? Why or why not?
Responses
Mechanical energy is always conserved.
Mechanical energy is always conserved.
The mechanical energy is conserved. There is as much KE at the end as there was PE at the beginning.
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 gravity.
The mechanical energy isn't conserved. Some energy is lost to gravity.
The mechanical energy isn't conserved. Some energy is lost to friction.