Question

A man is crossing a river flowing with a velocity of 5 metre per second he reach a point directly across at a distance of 60 metre per second in 5 second is velocity in still water should be

Answer 1

Answer: 13 m/s

Explanation: time taken= 5s

Distance= 60m

Let v= velocity of man

And u= velocity of river

Then, t= d/√v^2-u^2

Solving for v after putting values,

v= 13m/s

Answer 2

Answer:

13m/s

Explanation:

Vmr = Vm-Vr

Vm = 60/5 = 12m/s

Vr = 5m/s

Vmr = root over

(12)^2 + (5)^2

Vmr = 13m/s