A machine overcomes a resistance of 1600 N through a distance of 0.12 m, when an effort of 400 N acts
through a distance of 0.96 m. Calculate (i) VR (ii) MA (iii) efficiency of the machine.
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A machine overcomes a resistance of 1600 N through a distance of 0.12 m, when an effort of 400 N acts
through a distance of 0.96 m. Calculate (i) VR (ii) MA (iii) efficiency of the machine.
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Answer:
given =
L =1600N
d = 0.12m
E = 400N
D = 0.96m
to find = i) VR (ii) MA (iii) efficiency of the machine.
solution :-
velocity ratio = D /d = 0.96 / 0.12
= 8
mechanical advantages = L / E
= 1600 / 400
= 4
% of ffeciency
of machine = M.A /V.R X 100
= 4/ 8 X 100
= 50%
the velocity ratio is 8
mechanical advantages = 4
and % of effeciency of machine is 50%