A person uses an iron lever of length 3 m is used for lifting a box of weight 200 kgwt. He uses a wooden block as a support to the lever about which ot can move. Where must the support be placed from the load. If the effort taken by him is 200 N?
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He uses a wooden block as a support to the lever about which ot can move. Where must the support be placed from the load.
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