Problem: A motorboat whose speed in still water is 4.10 m/s must aim upstream at an angle of 18.6 o (with respect to a line perpendicular to the shore) in order to travel directly across the stream. What is the speed of the current?What is the resultant speed of the boat with respect to the shore? (as shown in the figure.)

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Problem Details
A motorboat whose speed in still water is 4.10 m/s must aim upstream at an angle of 18.6 o (with respect to a line perpendicular to the shore) in order to travel directly across the stream.

What is the speed of the current?

What is the resultant speed of the boat with respect to the shore? (as shown in the figure.)

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Relative Velocity in 2D concept. You can view video lessons to learn Relative Velocity in 2D. Or if you need more Relative Velocity in 2D practice, you can also practice Relative Velocity in 2D practice problems.