Is hydraulic jack violation of thoermodynamics

  • Thread starter mashhood
  • Start date
  • #1
4
0
when i use hydralick jack to lift up my car i put less energy and pick up heavey car ,so am i geting more by puting less in a hydralick system?
 

Answers and Replies

  • #2
HallsofIvy
Science Advisor
Homework Helper
41,833
961
You are confusing "force" with "energy". When you move the jack handle down, say one foot while the car goes up 1/2 inch then, since "energy" is "distance times force", (1/2)F= (12)f so that f= (1/24)F. To get the same energy you need only apply 1/24 the force. There is a "conservation of energy" law but there is no "conservation of force".
 

Related Threads on Is hydraulic jack violation of thoermodynamics

  • Last Post
Replies
4
Views
563
Replies
2
Views
2K
Replies
11
Views
4K
Replies
74
Views
9K
  • Last Post
Replies
4
Views
9K
  • Last Post
Replies
14
Views
3K
  • Last Post
Replies
7
Views
2K
  • Last Post
Replies
2
Views
4K
  • Last Post
Replies
5
Views
2K
  • Last Post
Replies
1
Views
1K
Top