Question

Chapter 2, Practice Problem 2/085 x Incorrect The speedboat B is cruising to the north at 80 mi/hr when it encounters an eastward current of speed ve = 17 mi/hr but does not change its heading (relative to the water). Determine the subsequent velocity of the boat relative to the wind and express your result as a magnitude vrel and compass direction & measured clockwise from north. The current affects the motion of the boat; the southwesterly wind of speed vw = 30 mi/hr does not. Uc Answers: Vrel 22.691 Umi/hr 333.748

Answer 1

The resultant relocity of the boatis, (80 9 + 1702 ) mi/hr velocity of the boat relative to the wind is (TB + ve new) a vw = -30 (63 20° a 30 Sinzo (17 + 3065 zoom + (80 + 30 Sin 200 (45:19 â + 90.269 ) ) Nye = 100.94 milu $ = ten' ñ = toit ( 9405120) = 6 314° => 0 = 90-4 =12616 o