Determine Efficiency of wedge below.

E= 370lbs
T= 6"
R= 3000lbs
L= 5"

Question

Determine Efficiency of wedge below.

E= 370lbs
T= 6"
R= 3000lbs
L= 5"

smartbrain · Answer

Can somebody help me???

anonymous · Answer

Can you define your variables please, or perhaps provide a labeled diagram?

smartbrain · Answer

|dw:1352344182832:dw|

smartbrain · Answer

Help plz

anonymous · Answer

I'm thinking this might be able to be solved using principles of levers (since all simple machines are either levers or combinations of levers), but I think there is a shortcut too.

smartbrain · Answer

Yes correct we are in 6 simple machines unit, I failed the exam and I have to re do the questions I got wrong for 1/2 point back

smartbrain · Answer

Do you know the formula for solving the problem

smartbrain · Answer

Can you speak English please

anonymous · Answer

In all cases, efficiency is $\large Work_{out} \div Work_{in} = \frac{mechanical \space advantage}{distance \space ratio}$.

smartbrain · Answer

Thats better thanks

anonymous · Answer

Sorry, got the LaTeX code messed up.

anonymous · Answer

Mechanical advantage is Load Force ÷ Effor Force.

smartbrain · Answer

Thanks

anonymous · Answer

This page has some formulae: http://www.eformulae.com/engineering/machines.php and this one seems a little better: http://www.roymech.co.uk/Useful_Tables/Mechanics/Machines.html

smartbrain · Answer

Thanks for the help.