A toy car is rolling down the ramp as shown in the figure. The car's mass is 1.7 kg and the ramp makes an angle of θ = 16 degrees with respect to the horizontal plane. Assume the car rolls without friction. Using the coordinate system specified, give an expression for the acceleration of the car in terms of θ,g and the unit vectors i and j.    What is the magnitude of this acceleration in m/s^2

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