" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
r=0,8 m
m=5 kg
dit=Ek
Ek=1/2×l×w²
=1/2×1/2×m×r²×v²/r²
=1/4×m×v²
=1/4×5×20 phi²
=4934,8 joule.