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Topic:Simple machines

I.D Level Problem Problem Topic
45 High school A lever is used to lift a heavy load. When a 50N force pushes one end of the lever down 1.2m, the load rises 0.2 m.Calculate the weight of the load. . . . continues
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Simple machines
1398 High school If two identical masses are attached by a light cord which is passing over a mass-less frictionless pulley of an Atwood’s machine , but at different heights , and then released . . . . continues
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Simple machines
1408 High school A 225 kg piano is rolled up a 6.0 m ramp at a angle of 30 degrees , the men pushing the piano exert a combined force of 1560 N parallel to the ramp surface .

(a) What is the AMA ?

(b) What is the IMA of the ramp ?

(c) What is the work in ?

(d) What is the work out ?

(e) What is the efficiency ?

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Simple machines
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A Unit of Tiara Impex