A machine is able to lift a load of $100 N$ . If the machine offers a resistance of $20 N$ due to friction and movable parts through a displacement of $2 m$ .
(a) then find the total load lifted.
(b) find the work output of the machine.

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Solution

The total $l o a d l i f t e d = l o a d - r e s i s t a n c e = 100 N - 20 N = 80 N$
$w o r k = l o a d * d i s p l a c e m e n t = 80 N * 2 m = 160 J$

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A machine is able to lift a load of 100N. If the machine offers a resistance of 20N due to friction and movable parts through a displacement of 2m. (a) then find the total load lifted. (b) find the work output of the machine.

The total loadlifted=load−resistance=100N−20N=80Nwork=load∗displacement=80N∗2m=160J

A machine is able to lift a load of $100 N$ . If the machine offers a resistance of $20 N$ due to friction and movable parts through a displacement of $2 m$ .
(a) then find the total load lifted.
(b) find the work output of the machine.

The total $l o a d l i f t e d = l o a d - r e s i s t a n c e = 100 N - 20 N = 80 N$
$w o r k = l o a d * d i s p l a c e m e n t = 80 N * 2 m = 160 J$