Problem 3-5 - Solution: See Mathcad file P0305. 1. From...

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MACHINE DESIGN - An 3-5-1 PROBLEM 3-5 Statement: For the trailer hitch of Problem 3-4, determine the horizontal force that will result on the ball from accelerating a 2000-kg trailer to 60 m/sec in 20 sec. Units: kN 10 3 newton . Given: Mass of trailer M trailer 2000 kg . Final velocity v f 60 m sec . Time to reach velocity τ 20 sec . Assumptions: 1. Acceleration is constant. 2. The rolling resistance of the tires and the wheel bearings is negligible.
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Unformatted text preview: Solution: See Mathcad file P0305. 1. From elementary kinematics, the acceleration required is a v f a 3.00 m sec 2 = (1) 2. Using Newton's second law to find the force required to accelerate the trailer, F hitch M trailer a . F hitch 6.00 kN = (2) P 0305.mcd...
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This note was uploaded on 04/26/2010 for the course MAE 3242 taught by Professor N/a during the Spring '10 term at University of Texas-Tyler.

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