Asked by Mozes dixon

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

13 years ago

Answered by Steve

his total energy does not change
PE = 8*100

After 100m, it won't matter :-(

13 years ago

Answered by Mozes dixon

I dnt understand

13 years ago

Answered by Damon

8 * 9.8 * 100

13 years ago

Answered by Steve

Thanks, Damon. Forgot PE=mgh
Must have thought 8kg was his weight...

13 years ago

Answered by Davido

4800 J

9 years ago

Answered by Wisdom

Thanks for that

5 years ago

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