answer eka t = 2+(u/2g) seconds neda?
hadapu kattiya kiyanna!![]()
Machan kohomada heduwe, Chalita Sameekarana demme kohomada

answer eka t = 2+(u/2g) seconds neda?
hadapu kattiya kiyanna!![]()

Applying s=ut+0.5at^2
for 1st ball (vertically upward direction)
h=u(t+2) - 0.5g(t+2)^2 ---------------(1)
for 2nd ball (vertically upward direction)
h=ut - 0.5gt^2 ---------------(2)
(1)-(2) gives
t = u/g -1 (time taken to for the collision after launching the 2nd ball)
or
t' = u/g + 1 (time taken to for the collision after launching the 1st ball)
harida danne na. waradi nam sorry.....

Theory eka harida machan.

why am I getting something like
(u-g)/g = t
![]()

මොකද ඔතන චලිතය ස්කන්දයෙන් ස්වායත්ත වෙනවා. ශක්ති සංස්තිතිය අනුව
දෙකෙ විස්තාපන හා ප්රවෙග සමාන වෙන තැන බලපන්why am I getting something like
(u-g)/g = t
![]()
t=u/g-1haha![]()
Mama eka dunnu gaman haduwa. Mata sahenna sulu kireem widinna puluwan hinda thawa deparak haduwa
In passe meya daala thibba uththare dakala duka hithuna. Mama hithuwe ayith widala kiyala 


![]()
oya pic eke 1 saha 2 thrikoona wala area samaana karahama hari! ara ekkenek haduwe ehemada koheda!
naththan pic eke thiyena t hoyala eekata palaweni 2 sec saha eelanga 1 sec ekathu karath hari!
t hoyanne mehemai!
v=u + at dammahama
v= u -2g wenawa
eeta passe ethana indan boole nathara wena thanata dammahama
0= v- gt wenawa
ee kiyanne
0= (u-2g) -gt
so t= (u/g) - 2
ookata anik 2 sec ekathu karahama t = (u/g) +1
arooge answer ekamai!
PS: man kalin daapu answr eka waradii ban! sorry!
Oya thiyena monaa hari deela palayawu!![]()

![]()
oya pic eke 1 saha 2 thrikoona wala area samaana karahama hari! ara ekkenek haduwe ehemada koheda!
naththan pic eke thiyena t hoyala eekata palaweni 2 sec saha eelanga 1 sec ekathu karath hari!
t hoyanne mehemai!
v=u + at dammahama
v= u -2g wenawa
eeta passe ethana indan boole nathara wena thanata dammahama
0= v- gt wenawa
ee kiyanne
0= (u-2g) -gt
so t= (u/g) - 2
ookata anik 2 sec ekathu karahama t = (u/g) +1
arooge answer ekamai!
PS: man kalin daapu answr eka waradii ban! sorry!
Oya thiyena monaa hari deela palayawu!![]()
Applying s=ut+0.5at^2
for 1st ball (vertically upward direction)
h=u(t+2) - 0.5g(t+2)^2 ---------------(1)
for 2nd ball (vertically upward direction)
h=ut - 0.5gt^2 ---------------(2)
(1)-(2) gives
t = u/g -1 (time taken to for the collision after launching the 2nd ball)
or
t' = u/g + 1 (time taken to for the collision after launching the 1st ball)
harida danne na. waradi nam sorry.....

මචන් ඔතන ප්රවෙගය බිංදුවක් වෙනවා කියලා උපකල්පනය කරන්න පුලුවන්ද එක පාරම