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Solution for Fig 3.16 Below Shows a Lever in Use. (A) to Which Class of Lever Does It Belong? (B) If Ab = 1m, Af = 0.4 M, Find Its Mechanical Advantage, (C) Calculate the Value of E. - ICSE Class 10 - Physics

Question

Fig 3.16 below shows a lever in use.

(a) To which class of lever does it belong?
(b) If AB = 1m, AF = 0.4 m, find its mechanical advantage,
(c) calculate the value of E.

Solution

(a) This is a class I lever.
(b) Given AB=1m, AF=0.4m and BF=0.6 m
Mechanical advantage M.A = 𝐵𝐹𝐴𝐹= 0.60.4=1.5
Effort = "𝐿𝑜𝑎𝑑"/"𝑀.𝐴" = 15/1.5 = 10 𝑘𝑔𝑓