Quote:

Rower $\displaystyle A$ is stationary at the point $\displaystyle A$ adjacent to the river bank

when he spots an object floating down the river.

He estimates that the object is 50 m away and heading south at a speed of 3 m/s.

Assuming rower $\displaystyle A$ can sustain a rowing speed of 4 m/s,

1) Draw a diagram of the velocity vectors involved if rower $\displaystyle A$ is to intercept the object.

2) Calculate the direction with respect to the river bank he needs to row

(in degrees) in order to achieve his goal.