Asked by Josh
A 16kg child on roller skates rolls 2m down an incline at 20 degrees with the horizontal. With no friction, what is the total kinetic energy of the child at the bottom of the incline?
Answers
Answered by
drwls
It falls a vertical distance H = 2 sin 20 meters.
In the process, the kinetic energy increases by M g H.
In the process, the kinetic energy increases by M g H.
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