suppose a boat is heading across the see at 20km/h toward the east, the current move the boat 3o°S of E for 30 km/h find the resultant velocity of the boat

Question

suppose a boat is heading across the see at 20km/h toward the east, the current move the boat 3o°S of E for 30 km/h find the resultant velocity of the boat

Answer 1

Draw and label a diagram!

A 120° angle is between the two vectors.

Use the Law of Cosines to determine speed.

Use the Law of Sines to determine the direction.