Ramps VS. car jack - Maintenance/Repairs - Car Talk Community
WEBhellokit June 17, 2008, 9:19pm 3. Ramps are stabiler than jack stands…they have a larger footprint. For maximum security, I have used all five: two jack stands, two ramps, and the floor jack left in place with a little tension on it. It must have worked, I’m still here! Joseph_E_Meehan June 17, 2008, 9:44pm 4.
Calculating Applied Force for Lifting a 450 kg Car with a Scissors Jack
WEBOct 29, 2012 · 1. The Problem is a simple scissors jack has lifted a 450 kg car and the angle of the arms of the jack are 15° as seen in the attached drawing 2. The question is what is the applied force required to lift the 450 kg mass? 3. I drew my free body diagram and got that F=mg/2cos15°, which comes out to 2280.
Designing a Car Jack - Best Type & Tips - Physics Forums
WEBNov 6, 2007 · 2. What is the weight capacity of a car jack? The weight capacity of a car jack varies depending on the type and brand, but most jacks have a weight capacity of 2-3 tons. It is important to check the weight capacity of the jack before using it to ensure it is suitable for your vehicle. 3. What materials should be used for a car jack?
How do I determine the force and torque requirements for a 12V …
WEBNov 1, 2014 · Gold Member. 10,544. 2,323. The force required to lift one side of a car is going to be about half the weight of the car. So for something like a Dodge Durango the force will be something like 15,000N (3000Kg * 9.81 / 2). It's not easy to convert that to torque because you don't know the friction in the jack.
Car fell off jack - Maintenance/Repairs - Car Talk Community
WEBMar 13, 2011 · If the car fell off the jack twice there is either something wrong with the jack or the method being used to raise the car. Any damage to the car can be easily and readily repaired. Any damage to your husband resulting from the car falling in him is not as easily repaired. Joseph_E_Meehan March 13, 2011, 5:06pm 6.
Car jack evolution - Maintenance/Repairs - Car Talk Community
WEBNov 14, 2008 · If you mean the jacks the average motorist uses to change a tire (as opposed to service jacks), the answer is very little. Except for a few oddball cars here and there that use hydraulic bottle-jacks, since they started coming with jacks almost every car has come with some variation of a little platform that moves up and down a threaded shaft.
Car Jack Torque Calculation - 100kg - Physics Forums
WEBMar 1, 2007 · The car jack torque calculation is typically performed by first determining the weight of the car, which is 100kg in this case. Then, the torque required to lift this weight is calculated using the formula: Torque = Force x Distance. The distance in this case would be the height the car needs to be lifted, and the force would be the weight of ...
How to find the normal force of a car jack lifting a car - Physics …
WEBNov 28, 2018 · A car is lifted vertically by a jack placed at the car's rear end 40cm off the central axis, so that the weight of the car is supported by the jack and the two front wheels. The distance between the front wheels is 1.60m, the distance from the axis connecting the two wheels to the center of mass of the car is 80cm, and the distance from the ...
Calculate Power of Car Jack | Physics Problem Help - 250-W …
WEBNov 2, 2004 · To calculate the power of the car jack, the formula P = mgh/t is used. When a 250-W hydraulic car jack is used to do the same work on the same car, the time it takes to lift the car will be calculated using the formula P_ {1}*t_ {1}=P_ {2}*t_ {. A car jack is used to lift a quarter of the weight of a 1200kg car 20 cm in 20s.
Scissor Jack Warning (mine collapsed this weekend) - Car Talk …
WEBOct 29, 2007 · If you notice your scissor jack getting very hard to turn, this is probably the first sign of failure. Look very closely at the threaded screw and what it passes through. Make sure there are no metal strands wrapped around the threaded screw - a sign of failing threads. 3.) Don’t use just any scissor jack on any car.