z balkonu na wys 16.2 m upuszczono klucze o masie 120g. oblicz szybkość kluczy w chwili upadku na chodnik
dane:
h =16,2m
m =120g = 0,12kg
g =10m/s2
szukane:
v =?
Ep = Ek
mgh =mv^2/2 I:m
mgh =v^2/2 I*2
v^2 =2mg = 2 * 0,12kg *10m/s2 =324 m^2/s^2
v =V324 [m/s]
v =18m/s
==========
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
dane:
h =16,2m
m =120g = 0,12kg
g =10m/s2
szukane:
v =?
Ep = Ek
mgh =mv^2/2 I:m
mgh =v^2/2 I*2
v^2 =2mg = 2 * 0,12kg *10m/s2 =324 m^2/s^2
v =V324 [m/s]
v =18m/s
==========