" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
F2=40N
s=20m
w=800j
F3__?
jawab:
w=∆F×s
800=(F1+F2-F3)×20
800=(50+40-F3)×20
800=(90-F3)×20
800/20=90-F3
40=90-F3
40-90=-F3
-50=-F3
F3=50N
ke kiri.