pre-calc

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a ship leaves port and sails for 2 hours north east and than 3 hours north west. If the speed remains constant, what course should the ship take home?

  • pre-calc -

    make a sketch to create the right-angled triangle OAB, where A is the 90° angle
    tanØ = 3/2, where Ø is the angle O
    Ø = 56.3°
    So to head back he should take the course
    S 11.3° E
    or
    a bearing of 168.7°

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