# Engineering

You are given a hydraulic jack which you'd like to keep in your car in case you have a flat. Your vehicle weighs 4500lbs, and you know the jack will have to lift 1500 lbs when you put it under the axle. The hand end cylinder of the jack is 1/2inch in diameter and the "work" end of the cylinder is 3.5 inches in diameter. It has an 8 inch long handle; the distance from the attachment point of the handle to the small piston of the jack is 1.5 inches. How much force will you have to apply to the end of the handle to lift the car and change a tire?

Force= 1500*/(MAjack*MaHandle)
Force= 1500/[(3.5/.5)^2 *(6.5/1.5)]

]
check that

i don't understand that formula can you elaborate a little bit i came out with 7.07lbs of force and i don't think that is enough. Thanks

Car A has a speed of 20 km/h, which is being increased at the rate of 300 km/h2 as the car enters an expressway. At the same instant, car B is decelerating at 250 km/h2 while traveling forward at 100 km/h. Determine the velocity and acceleration of A with respect to B.

1. 👍
2. 👎
3. 👁

## Similar Questions

1. ### Physics

a certain hydraulic jack in a gas station lifts a 900 kg car,a distance of 0.25 m when a force of 150 Newtons pushes a piston through a distance of 20 cm.What is the IMA,AMA and efficiency

2. ### Word Problem Maximizing A Bonus

Pauline Wong spends 4 hours selling a used car and 6 hours selling a new car. She works no more than 40 hours per week. In order to receive a bonus, she must sell at least one used car and four new cars each week. In that case,

3. ### physics

You testify as an expert witness in a case involving an accident in which car A slid into the rear of car B, which was stopped at a red light along a road headed down a hill (see the figure). You find that the slope of the hill is

4. ### physics

A hydraulic jack in a gas station lifts a 900kg car a distance of .25cm When a force of 150N pushes a piston through a distance of 20cm Find the IMA (book answer is 80) AMA (book answer is 59) Efficency (book answer is 74%) can

1. ### Language Arts

I have 6 questions but the story "the importance of being earnest" Act 1, Sence 1 1.which sentence best reveals the theme of this passage? A: "more than half of modern culture depends on what one shouldn't read." B: "the truth is

2. ### Physics

In the process of changing a flat tire, a motorist uses a hydraulic jack. She begins by applying a force of 49 N to the input piston, which has a radius r1. As a result, the output plunger, which has a radius r2, applies a force

3. ### ALGEBRA

A single card is selected from an ordinary deck of cards. The sample space is shown in the following figure. Find the following probabilities. (Enter the answers either as fractions or as decimals rounded to three places.) P(five

4. ### Physics

The diameter of ram and plunger of a hydraulic press are 200 mm and 30 mm respectively.find the weight lifted by the hydraulic press when the force applied at the plungeris 400 N

1. ### statistic

For each of the following, assume you are working with a standard deck of 52 cards. There are 13 cards (2,3,4,5,6,7,8,9,10, jack, queen, king and Ace) in each of four suits (Clubs, Diamonds, Hearts, and Spades). a. What is P(Club)

2. ### PHYSICS!

The piston of hydraulic automobile lift is 0.30 m in diameter. Calculate the gauge pressure required to lift a car with a mass 1000 kg in, A) Pascals B) Atm

3. ### Civics

Which of the following is an example of double Jeopardy? A. Being sued for causing Jack smiths death after being found not guilty of Jack Smithâ€˜s death. B. **Being tried for murder of Jack Smith after being found not guilty for

4. ### physics

The small piston of a hydraulic lift has an area of 0.10 m2. A car weighing 2.0 x 104 N sits on a rack mounted on the large piston. The large piston has an area of 0.50 m2. How large a force must be applied to the small piston to