# Thread: Preparation for Optimization

1. ## Preparation for Optimization

A man can row at 44 km/h, and run at 33 km/h. He needs to get from a point A, on the south bank of a stretch of still water, to point B on the north bank of the water. The direct distance from A to B is 55 km, and the water is 44 km wide. He starts rowing with an angle θθ between North and the direction in which he rows. Find an expression for the time TT he will take to get from A to B, in terms of θ. .

2. ## Re: Preparation for Optimization

Have you made a sketch?

Recall $\dfrac{distance}{speed} = time$