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Newton's Laws of Motion to Find Mass

The loaded trailer has a mass of 900 kg with a center of mass at G and is attached at A (see attachment for fig.) to a rear bumper hitch. If the car and trailer reach a velocity of 60 km/hr on a level road in a distance of 30 m from rest with constant acceleration, compute the vertical component of the force supported by the hitch at A. Neglect the small friction force exerted on the relatively light wheels.


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