" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
F=m*a
W=m*a*s
a=Δv/Δt
s=at²/2
t=20s, s=30m
a*20²/2=30
400a/2=30 /:200
200a=30
a=3/20 m/s²
W=1kg*3/20 m/s²*30m=9/2 J
W=4,5 J