Question
A boy of mass 8kg falls from rest from a height of 100m, neglecting air resistance calculate his total energy after fallin down a distance of 40m
Answers
Steve
his total energy does not change
PE = 8*100
After 100m, it won't matter :-(
PE = 8*100
After 100m, it won't matter :-(
Mozes dixon
I dnt understand
Damon
8 * 9.8 * 100
Steve
Thanks, Damon. Forgot PE=mgh
Must have thought 8kg was his weight...
Must have thought 8kg was his weight...
Davido
4800 J
Wisdom
Thanks for that