Fig. 3.16
L-15 kgf
(a) To which class of lever does it belong?
(b) If AB = 1 m. AF = 0,4 m, find its mechanical
advantage.
(c) Calculate the value of E.
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Answer:
a) It is a second- class lever.
b) Mechanical advantage is 1/ 0.4 or 10/4= 2.5.
c) (40 cm* 150 N)/ 100 cm= 60 N or 6 kgf. (taking 1 kgf= 10 N)
Explanation:
a) Second class lever has the length of effort arm more than load arm. This diagram also has length of effort arm more than load arm. So, it is second class lever.
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