Lakshmi Warrier
Last Activity: 7 Years ago
From my observation, i think time is also neede to answer this qn...
By the way, is this an mcq?
Given,
v+u=17 -----(1)
(v-u)/t=10ms-2
v-u=10ms-2 * t seconds
= 10t m/s ----- (2)
Solve 1 and 2
v=(17+10t)/2
Substitute in (1)
(17+10t)/2 +u = 17
17+10t+2u= 34
10t + 2u=17
u = (17- 10t)/2
Substitue in (1)
v+17+10t =17
v+10t=0
v= -10t
this is why i said if t was there, answer would be accurate
and if anyone knows it more perfect, pls write that too
