Science, asked by shivshankarsah090, 3 days ago

A load of 600 N is lifted by using a lever of 4 meter effort arm applying an effort of 200 N. If the load arm is 1 meter, calculate MA,VR and Efficiency of the lever.​

Answers

Answered by XxitzKing02xX
2

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Load (l) = 680N

Effort (E) = 500N

Length of slope (l) = 12m

Height of slope (h) = 8 m

Now,

Output work = load * height

680 *8 = 5.44 *103 J

Input work = effort * length = 500 *12 = 6000J

Mechanical advantage (M.A)

= loadeffort= 600500=1.36

Velocity ratio (V.R) =lh=128 = 1.5

Efficiency =M.A100%V.R= 90.6%

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