Physics
The diagram below shows a block and tackle system.
(a) Copy and complete the labelled diagram showing the correct connection of the tackle, the direction of the forces involved to obtain maximum V.R. with the convenient direction.
(b) Calculate the M.A. of this pulley system if its efficiency is 80%.
Machines
ICSE Sp 2024
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Answer
(a) The completed diagram is given below:
(b) η = 80% given
V.R. = n = 3,
M.A. =?
η =
=
M.A. = x 3= = 2.4
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