55. A boat and trailer weighing a total of 450 lb are parked on a boat ramp with an 18° angle of inclination. Assume that the weight of the boat and trailer is evenly distributed between two wheels. (See Example 5) 18° F F2 a. Write the force vector F in terms of i and j representing the weight of the boat and trailer for a single tire. b. Find the component vector of F parallel to the ramp. Round values to 1 decimal place. c. Find the magnitude of the force needed to keep the trailer from moving down the ramp. Round to the nearest pound.

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