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Question
Two crowbars of lengths 5 m and 7 m are used to lift a boulder, using a small stone, as a fulcrum. Does it affect the effort required to lift the load?
Two crowbars of lengths 5 m and 7 m are used to lift a boulder, using a small stone, as a fulcrum. Does it affect the effort required to lift the load?
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Solution
The correct option is A Yes
Yes it effects the effort required to lift the load as a crow bar of 7 m length provides greater effort arm than a crow bar of 5 m length. Thus crow bar of 7 m length requires lesser effort.
Yes it effects the effort required to lift the load as a crow bar of 7 m length provides greater effort arm than a crow bar of 5 m length. Thus crow bar of 7 m length requires lesser effort.
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