A boat is travelling across the water at 18 km/hr due E. A policeman needs to intercept the boat as quickly as possible but is 100 m due S of the boat at t=0 s. If the policeman is initially at rest, and can accelerate his jet ski at 1.0 m/s^2 , what angle must he travel at to intercept the boat in the shortest possible time?

Question

A boat is travelling across the water at 18 km/hr due E.  A policeman needs to intercept the boat as quickly as possible but is 100 m due S of the boat at t=0 s.  If the policeman is initially at rest, and can accelerate his jet ski at 1.0 m/s^2 , what angle must he travel at to intercept the boat in the shortest possible time?