535Let speed of raft(stream) be u km/hr
and speed of motorboat wrt water be v km/hr
vMR=v+u
vRaftR=u
In 1 hr, dist. covered by M = v+u km
In 1 hr, dist. covered by Raft = u km
Extra distance covered by motorboat = v km
let after time t they meet,
ut=t(v-u)
or 2u = v [since VMR when going upstream is -(v-u) (considering initial dirn positive]
Now, u(t+1) = 6 or ut + u = 6(1)
and (v+u) - (v-u)t = 6
or 3u - ut = 6 - (2)
Adding 1 and 2
4u = 12 or u = 3
- Aditya Agarwal V raftR = 0
- Aditya Agarwal Vm = v+u
Himanshu Giria Please could you tell what is Vmr and Vraftr - Himanshu Giria Please could you tell what is Vmr and Vraftr
Sahil Jain Vmr is velocity of motor boat wrt o water
Vraftr is velocity of raft wrt water- Himanshu Giria but speed of motorboat wrt water is v ...
- Aditya Agarwal yeah. that is why i corrected it.
- Himanshu Giria o... sorry
