Question: A car jack has square teeth with two threads. The pitch is equal to 6 m m and external diameter 3 0 m m .

A car jack has square teeth with two threads. The pitch is equal to 6mm and external diameter 30mm. Coefficient of friction between the surfaces is f=0.30. Vertical force, created by the weight of the car is 10kN.
a. What is the number of turns required to lift the car by 240mm?
b. What is the force required to lift the car?
c. What is the force required to lower the car?
d. Is the jack self-locking?
A car jack has square teeth with two threads. The pitch

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Mechanical Engineering Questions!

Q:

4. A car jack has square teeth with two threads. The pitch is equal to 6 mm and external diameter 30 mm. Coefficient of friction between the surfaces is f= 0.30. Vertical force, created by the weight...

Q:

Please evaluate the quality of the design (answer questions within 1-4 on the gas turbine recuperator rating problem). Please answer all questions asked. Show all calculations. I have provided...

Q:

Note: To simplify calculations, you may use g = 10 m/s in all problems.V =7.5 m/s Questions 2-4 refer to the following figure: B C - NWAVAN D velocity (m/s) 1. An object is thrown horizontally to the...

Q:

please help with matlab. And please show the scripts and function windows. thanks! MET321 Analytical Tech. Due: Thursday, April 12 Homework 16 Problem 1 Rotational speed can be red in revolutions pe...

Q:

2. The car jack is used to raise a load of 450Kg. The screw of the jack has a trapezoidal thread while the collar at D (not seen) has a thrust bearing to take the axial load in the serew. a) Draw...

Q:

The car jack is used to raise a load of 450 Kg. The screw of the jack has a trapezoidal thread while the collar at D (not seen) has a thrust bearing to take the axial load in the screw. a) Draw free...

Q:

2 . The car jack is used to raise a load of 4 5 0 Kg . The screw of the jack has a trapezoidal thread while the collar at D ( not seen ) has a thrust bearing to take the axial load in the screw. a )...

Q:

Produce a work breakdown structure for the minor dwelling project plan ( the image files provided) using ms word or another software. The work breakdown structure should have 4 hierarchy levels with...

Q:

MEE 421 - Assignmen... Due: 20.11.2023 Question 1 MULUNGUSHI UNIVERSITY SCHOOL OF ENGINEERING DEPARTMENT OF MECHANICAL ENGINEERING MEE 421 - ASSIGNMENT 2 60 Marks An open-belt drive connects two...

Q:

Hello I'm trying to write a report after collecting this data about conservation of energy and momentum. Please any help would be much appreciated Data Sheet for Experiment M-9 4. Plug the small plug...

Q:

Consider a dipole antenna with length , charge q and frequency . The power emitted by the antenna at a large distance ris P. Now suppose the length is increased to 20, the charge is increased to 39...

Q:

Knowing that the coefficients of friction between the component I and member BC of the mechanism of Prob. 12.62 are 0.35 s = and 0.25, k = determine (a) The maximum allowable speed vB if the...

Q:

During routine gynecological visits, approximately % ? 0 of women report pain from sexual activity. Select one: a . 1 0 b . 4 3 c . 7 2 d . 2 6

Q:

CT Corp Comprehensive Question Canadian Tire Corporation, Limited ( Canadian Tire ) is a family of companies that includes a retail segment and a financial services division, among others. The retail...

Q:

4. Describe the role of narratives in constructing history.

Q:

1. Identify six different types of history.

Q:

3. Explain the relationship between history, power, and intercultural communication.