Question

One morning on waking I saw from my window the blue sky glowing in the sun above the neighbouring houses. The canaries hanging in the windows were singing loudly, and so were the servants on every floor; a cheerful noise rose up from the streets, and I went out, my spirits as bright as the day, to go—I did not exactly know where.I went near a river 1km wide and blowing with speed 4m/s .
I jumped in it and swim with speed of 3m/s. At which angle should I swim to cross it with least time?

Answer 1

heya dear,
_________________☺☺☺

you can be in 180° because at this stage you can cover the least displacement.
d = v • t . So t = d / v 

ok