In the calm waters of an inlet, Manon's boat moves with a velocity (speed and direction) vector $\vec{b_1} = (3,4)$. Once it enters the main river channel, however, Manon observes that it is now moving with a velocity vector $\vec{b_2} = (1,1)$.
(Speeds are in meters per second, or $\text{m}/\text{s}$.)
**What is the speed of the river's current?**
[[☃ numeric-input 1]]$\,\text{m}/\text{s}$
(Round your final answer to the nearest tenth.)
**In what direction is the current flowing? Assume $0^\circ$ is the rightward direction.**
[[☃ numeric-input 2]]$^\circ$
(Round your final answer to the nearest degree. Your answer should be between $0^\circ$ and $360^\circ$.)
