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Scissor Jack load

by vpatel28
Tags: engineering, mechanical, scissor jack
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vpatel28
#1
Nov7-09, 10:29 PM
P: 5
1. The problem statement, all variables and given/known data

I have to determine the max load a scissor jack must support when lifting a 6000lb car. I know where the center of gravity is acting and the potential locations (distances from the center of gravity) the car will be jacked up. I know the max force is less than 6000 lb.

The attached document shows the geometry of the car.

2. Relevant equations



3. The attempt at a solution

I tried taking the moments about one of the tires and setting them equal to zero to solve for the max force at each location, but I know I'm doing something wrong.
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