2/159 A sailboat moving in the direction shown is tacking to windward against a north wind. The log registers a hull speed of 6.5 knots. A "telltale" (light string tied to the rigging) indicates that the direction of the apparent wind is 35° from the centerline of the boat. What is the true wind velocity U? vibolaya di hot of vide svows ban Av s Uw 50° 35° 107 200 6.5 knots PROBLEM 2/159 3 sd Irans dyul 000 = 80 11 mi qa A dobtw ylipalov adi

2/159 A sailboat moving in the direction shown is tacking to windward against a north wind. The log registers a hull speed of 6.5 knots. A "telltale" (light string tied to the rigging) indicates that the direction of the apparent wind is 35° from the centerline of the boat. What is the true wind velocity U? vibolaya di hot of vide svows ban Av s Uw 50° 35° 107 200 6.5 knots PROBLEM 2/159 3 sd Irans dyul 000 = 80 11 mi qa A dobtw ylipalov adi